IP Library › Patent Application 11292300

Patent Application

App. No. 11/292,300

Certain imidazo[1,2-a]pyrazin-8-ylamines and method of inhibition of Bruton's tyrosine kinase by such compounds

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App. No.: 11/292,300

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Abstract

Certain compounds, such as at least one chemical entity choen from compounds of Formula 1 and pharmaceutically acceptable salts, solvates, crystal forms, chelates, non-covalent complexes, prodrugs, and mixtures thereof, may in certain embodiments be used to treat patients suffering from one or more diseases responsive to inhibition of tyrosine kinase activity. The diseases may, for instance, be responsive to inhibition of Btk activity and/or B-cell proliferation. Example diseases include cancer, an autoimmune and/or inflammatory disease, and an acute inflammatory reaction.

Claims (1619)

1 . At least one chemical entity chosen from compounds of Formula 1

and pharmaceutically acceptable salts, solvates, crystal forms, chelates, non-covalent complexes, prodrugs, and mixtures thereof, wherein

B is chosen from 0 and 1;

R 1 is chosen from

substituted phenyl wherein the substituent is chosen from

hydroxy,

—CHO,

—COOH,

—CONH 2 ,

—CONHOH,

C 2 -C 6 alkenyl,

substituted C 2 -C 6 alkenyl chosen from mono-, di- and tri-substituted C 2 -C 6 alkenyl, wherein the substituents are independently chosen from halo, hydroxy, amino, oxo, —COOH, —CONH 2 , C 1 -C 4 alkyl, C 2 -C 4 alkenyl, C 2 -C 4 alkynyl, C 1 -C 6 alkoxy, C 2 -C 4 alkanoyl, C 1 -C 4 alkylthio, C 1 -C 2 haloalkyl, C 1 -C 2 haloalkoxy, C 1 -C 4 alkoxycarbonyl, mono-C 1 -C 4 alkylamino, di-C 1 -C 4 alkylamino, mono-C 1 -C 4 alkylcarboxamido, di-C 1 -C 4 alkylcarboxamido, and phenyl,

C 2 -C 6 alkynyl,

substituted C 2 -C 6 alkynyl chosen from mono-, di- and tri-substituted C 2 -C 6 alkynyl, wherein the substituents are independently chosen from halo, hydroxy, amino, oxo, —COOH, —CONH 2 , C 1 -C 4 alkyl, C 2 -C 4 alkenyl, C 2 -C 4 alkynyl, C 1 -C 6 alkoxy, C 2 -C 4 alkanoyl, C 1 -C 4 alkylthio, C 1 -C 2 haloalkyl, C 1 -C 2 haloalkoxy, C 1 -C 4 alkoxycarbonyl, mono-C 1 -C 4 alkylamino, di-C 1 -C 4 alkylamino, mono-C 1 -C 4 alkylcarboxamido, di-C 1 -C 4 alkylcarboxamido, and phenyl,

C 1 -C 6 alkyl,

substituted C 1 -C 6 alkyl chosen from mono-, di- and tri-substituted C 1 -C 6 alkyl, wherein the substituents are independently chosen from halo, hydroxy, amino, oxo, —COOH, —CONH 2 , C 1 -C 4 alkyl, C 2 -C 4 alkenyl, C 2 -C 4 alkynyl, C 1 -C 6 alkoxy, C 2 -C 4 alkanoyl, C 1 -C 4 alkylthio, C 1 -C 2 haloalkyl, C 1 -C 2 haloalkoxy, C 1 -C 4 alkoxycarbonyl, mono-C 1 -C 6 alkylamino, di-C 1 -C 6 alkylamino, mono-C 1 -C 4 alkylcarboxamido, di-C 1 -C 4 alkylcarboxamido, and phenyl,

C 1 -C 6 alkoxy,

substituted C 1 -C 6 alkoxy chosen from mono-, di- and tri-substituted C 1 -C 6 alkoxy, wherein the substituents are independently chosen from halo, hydroxy, amino, oxo, —COOH, —CONH 2 , C 1 -C 4 alkyl, C 2 -C 4 alkenyl, C 2 -C 4 alkynyl, C 1 -C 6 alkoxy, C 2 -C 4 alkanoyl, C 1 -C 4 alkylthio, C 1 -C 2 haloalkyl, C 1 -C 2 haloalkoxy, C 1 -C 4 alkoxycarbonyl, mono-C 1 -C 4 alkylamino, di-C 1 -C 4 alkylamino, mono-C 1 -C 4 alkylcarboxamido, di-C 1 -C 4 alkylcarboxamido, and phenyl,

heterocycloalkyl,

substituted heterocycloalkyl chosen from mono-, di- and tri-substituted heterocycloalkyl, wherein the substituents are independently chosen from halo, hydroxy, amino, oxo, —COOH, —CONH 2 , C 1 -C 4 alkyl, C 2 -C 4 alkenyl, C 2 -C 4 alkynyl, C 1 -C 6 alkoxy, C 2 -C 4 alkanoyl, C 1 -C 4 alkylthio, C 1 -C 2 haloalkyl, C 1 -C 2 haloalkoxy, C 1 -C 4 alkoxycarbonyl, mono-C 1 -C 4 alkylamino, di-C 1 -C 4 alkylamino, mono-C 1 -C 4 alkylcarboxamido, di-C 1 -C 4 alkylcarboxamido, and phenyl,

aryl,

substituted aryl chosen from mono-, di- and tri-substituted aryl, wherein the substituents are independently chosen from halo, hydroxy, amino, oxo, —COOH, —CONH 2 , C 1 -C 4 alkyl, C 2 -C 4 alkenyl, C 2 -C 4 alkynyl, C 1 -C 6 alkoxy, C 2 -C 4 alkanoyl, C 1 -C 4 alkylthio, C 1 -C 2 haloalkyl, C 1 -C 2 haloalkoxy, C 1 -C 4 alkoxycarbonyl, mono-C 1 -C 4 alkylamino, di-C 1 -C 4 alkylamino, mono-C 1 -C 4 alkylcarboxamido, di-C 1 -C 4 alkylcarboxamido, and phenyl,

heteroaryl,

substituted heteroaryl chosen from mono-, di- and tri-substituted heteroaryl, wherein the substituents are independently chosen from halo, hydroxy, amino, oxo, —COOH, —CONH 2 , C 1 -C 4 alkyl, C 2 -C 4 alkenyl, C 2 -C 4 alkynyl, C 1 -C 6 alkoxy, C 2 -C 4 alkanoyl, C 1 -C 4 alkylthio, C 1 -C 2 haloalkyl, C 1 -C 2 haloalkoxy, C 1 -C 4 alkoxycarbonyl, mono-C 1 -C 4 alkylamino, di-C 1 -C 4 alkylamino, mono-C 1 -C 4 alkylcarboxamido, di-C 1 -C 4 alkylcarboxamido, and phenyl,

—C 1 -C 6 alkylNR 10 (SO 2 )R 1 ,

substituted —C 1 -C 6 alkylNR 10 (SO 2 )R 11 chosen from mono-, di- and tri-substituted —C 1 -C 6 alkylNR 10 (SO 2 )R 11 , wherein the substituents are independently chosen from halo, hydroxy, amino, oxo, —COOH, —CONH 2 , C 1 -C 4 alkyl, C 2 -C 4 alkenyl, C 2 -C 4 alkynyl, C 1 -C 6 alkoxy, C 2 -C 4 alkanoyl, C 1 -C 4 alkylthio, C 1 -C 2 haloalkyl, C 1 -C 2 haloalkoxy, C 1 -C 4 alkoxycarbonyl, mono-C 1 -C 4 alkylamino, di-C 1 -C 4 alkylamino, mono-C 1 -C 4 alkylcarboxamido, di-C 1 -C 4 alkylcarboxamido, and phenyl,

—C 0 -C 6 alkylNR 10 (C═O)R 11 ,

substituted —C 0 -C 6 alkylNR 10 (C═O)R 11 chosen from mono-, di- and tri-substituted —C 0 -C 6 alkylNR 10 (C═O)R 11 , wherein the substituents are independently chosen from halo, hydroxy, amino, oxo, —COOH, —CONH 2 , C 1 -C 4 alkyl, C 2 -C 4 alkenyl, C 2 -C 4 alkynyl, C 1 -C 6 alkoxy, C 2 -C 4 alkanoyl, C 1 -C 4 alkylthio, C 1 -C 2 haloalkyl, C 1 -C 2 haloalkoxy, C 1 -C 4 alkoxycarbonyl, mono-C 1 -C 4 alkylamino, di-C 1 -C 4 alkylamino, mono-C 1 -C 4 alkylcarboxamido, di-C 1 -C 4 alkylcarboxamido, and phenyl,

—C 0 -C 6 alkyl(SO 2 )R 10 ,

substituted —C 0 -C 6 alkyl(SO 2 )R 10 chosen from mono-, di- and tri-substituted —C 0 -C 6 alkyl(SO 2 )R 10 , wherein the substituents are independently chosen from halo, hydroxy, amino, oxo, —COOH, —CONH 2 , C 1 -C 4 alkyl, C 2 -C 4 alkenyl, C 2 -C 4 alkynyl, C 1 -C 6 alkoxy, C 2 -C 4 alkanoyl, C 1 -C 4 alkylthio, C 1 -C 2 haloalkyl, C 1 -C 2 haloalkoxy, C 1 -C 4 alkoxycarbonyl, mono-C 1 -C 4 alkylamino, di-C 1 -C 4 alkylamino, mono-C 1 -C 4 alkylcarboxamido, di-C 1 -C 4 alkylcarboxamido, and phenyl,

—C 0 -C 6 alkylNR 10 (C═O)NR 11 R 12 ,

substituted —C 0 -C 6 alkylNR 10 (C═O)NR 11 R 12 chosen from mono-, di- and tri-substituted —C 0 -C 6 alkylNR 10 (C═O)NR 11 R 12 , wherein the substituents are independently chosen from halo, hydroxy, amino, oxo, —COOH, —CONH 2 , C 1 -C 4 alkyl, C 2 -C 4 alkenyl, C 2 -C 4 alkynyl, C 1 -C 6 alkoxy, C 2 -C 4 alkanoyl, C 1 -C 4 alkylthio, C 1 -C 2 haloalkyl, C 1 -C 2 haloalkoxy, C 1 -C 4 alkoxycarbonyl, mono-C 1 -C 4 alkylamino, di-C 1 -C 4 alkylamino, mono-C 1 -C 4 alkylcarboxamido, di-C 1 -C 4 alkylcarboxamido, and phenyl, and

-L-G, where

L is chosen from

C 1 -C 2 alkylene,

substituted C 1 -C 2 alkylene chosen from mono-, di- and tri-substituted C 1 -C 2 alkylene, wherein the substituents are independently chosen from halo, hydroxy, amino, oxo, —COOH, —CONH 2 , C 1 -C 4 alkyl, C 2 -C 4 alkenyl, C 2 -C 4 alkynyl, C 1 -C 6 alkoxy, C 2 -C 4 alkanoyl, C 1 -C 4 alkylthio, C 1 -C 2 haloalkyl, C 1 -C 2 haloalkoxy, C 1 -C 4 alkoxycarbonyl, mono-C 1 -C 4 alkylamino, di-C 1 -C 4 alkylamino, mono-C 1 -C 4 alkylcarboxamido, di-C 1 -C 4 alkylcarboxamido, and phenyl,

C 0 -C 2 alkylene-O—,

substituted C 0 -C 2 alkylene-O— chosen from mono-, di- and tri-substituted C 0 -C 2 alkylene-O—, wherein the substituents are independently chosen from halo, hydroxy, amino, oxo, —COOH, —CONH 2 , C 1 -C 4 alkyl, C 2 -C 4 alkenyl, C 2 -C 4 alkynyl, C 1 -C 6 alkoxy, C 2 -C 4 alkanoyl, C 1 -C 4 alkylthio, C 1 -C 2 haloalkyl, C 1 -C 2 haloalkoxy, C 1 -C 4 alkoxycarbonyl, mono-C 1 -C 4 alkylamino, di-C 1 -C 4 alkylamino, mono-C 1 -C 4 alkylcarboxamido, di-C 1 -C 4 alkylcarboxamido, and phenyl,

—(C═O)—,

—(C 1 -C 2 alkylene)(C═O)—, and

substituted —(C 1 -C 2 alkylene)(C═O)— chosen from mono-, di- and tri-substituted —(C 1 -C 2 alkylene)(C═O)—, wherein the substituents are independently chosen from halo, hydroxy, amino, oxo, —COOH, —CONH 2 , C 1 -C 4 alkyl, C 2 -C 4 alkenyl, C 2 -C 4 alkynyl, C 1 -C 6 alkoxy, C 2 -C 4 alkanoyl, C 1 -C 4 alkylthio, C 1 -C 2 haloalkyl, C 1 -C 2 haloalkoxy, C 1 -C 4 alkoxycarbonyl, mono-C 1 -C 4 alkylamino, di-C 1 -C 4 alkylamino, mono-C 1 -C 4 alkylcarboxamido, di-C 1 -C 4 alkylcarboxamido, and phenyl, and

G is chosen from

heterocycloalkyl,

C 3 -C 7 cycloalkyl,

substituted C 3 -C 7 cycloalkyl chosen from mono-, di- and tri-substituted C 3 -C 7 cycloalkyl, wherein the substituents are independently chosen from halo, hydroxy, amino, oxo, —COOH, —CONH 2 , C 1 -C 4 alkyl, C 2 -C 4 alkenyl, C 2 -C 4 alkynyl, C 1 -C 6 alkoxy, C 2 -C 4 alkanoyl, C 1 -C 4 alkylthio, C 1 -C 2 haloalkyl, C 1 -C 2 haloalkoxy, C 1 -C 4 alkoxycarbonyl, mono-C 1 -C 4 alkylamino, di-C 1 -C 4 alkylamino, mono-C 1 -C 4 alkylcarboxamido, di-C 1 -C 4 alkylcarboxamido, and phenyl,

aryl,

substituted aryl chosen from mono-, di- and tri-substituted aryl, wherein the substituents are independently chosen from halo, hydroxy, amino, oxo, —COOH, —CONH 2 , C 1 -C 4 alkyl, C 2 -C 4 alkenyl, C 2 -C 4 alkynyl, C 1 -C 6 alkoxy, C 2 -C 4 alkanoyl, C 1 -C 4 alkylthio, C 1 -C 2 haloalkyl, C 1 -C 2 haloalkoxy, C 1 -C 4 alkoxycarbonyl, -mono-C 1 -C 4 alkylamino, di-C 1 -C 4 alkylamino, mono-C 1 -C 4 alkylcarboxamido, di-C 1 -C 4 alkylcarboxamido, and phenyl, and

heteroaryl, and

substituted heteroaryl wherein the substituent is chosen from

hydroxy,

—CHO,

—COOH,

—CONH 2 ,

—CONHOH,

C 2 -C 6 alkenyl,

C 2 -C 6 alkynyl,

C 1 -C 6 alkyl,

C 1 -C 6 alkoxy,

heterocycloalkyl,

aryl,

heteroaryl,

—C 1 -C 6 alkylNR 10 (SO 2 )R 11 ,

—C 0 -C 6 alkylNR 10 (C═O)R 11 ,

—C 0 -C 6 alkyl(SO 2 )R 10 ,

—C 0 -C 6 alkylNR 10 (C═O)NR 11 R 12 ,

-L-G, where

L is chosen from

C 1 -C 2 alkylene,

C 0 -C 2 alkylene-O—,

—(C═O)—,

—(C 1 -C 2 alkylene)(C═O)—, and

G is chosen from

heterocycloalkyl,

C 3 -C 7 cycloalkyl,

aryl,

heteroaryl, and

wherein R 10 , R 11 , and R 12 are independently chosen from hydrogen, hydroxy, C 1 -C 6 alkyl, C 1 -C 6 alkoxy, C 3 -C 10 cycloalkyl, and heterocycloalkyl, and

wherein R 1 is optionally further substituted with 1 or more substituents independently chosen from hydroxy, nitro, cyano, amino, —SO 2 NH 2 , halo, C 1 -C 6 alkyl, C 2 -C 6 alkanoyl, C 1 -C 4 haloalkyl, C 1 -C 4 haloalkoxy, C 1 -C 6 alkylthio, C 3 -C 7 cycloalkyl, (C 1 -C 6 alkoxy)C 0 -C 6 alkyl, (mono-C 1 -C 6 alkylamino)C 0 -C 6 alkyl, (di-C 1 -C 6 alkylamino)C 0 -C 6 alkyl, and C 1 -C 6 alkoxycarbonyl;

R 2 is chosen from

C 1 -C 7 alkyl,

(C 1 -C 6 alkoxy)C 1 -C 6 alkoxy,

(heterocycloalkyl) C 0 -C 2 alkyl,

(C 3 -C 7 cycloalkyl)C 0 -C 2 alkyl,

(phenyl)C 0 -C 2 alkyl,

substituted (phenyl)C 0 -C 2 alkyl chosen from mono-, di-, and tri-substituted (phenyl)C 0 -C 2 alkyl, wherein the substituents are independently chosen from hydroxy, nitro, cyano, amino, halo, —SO 2 NH 2 , oxo, —COOH, C 1 -C 6 alkyl, C 2 -C 6 alkenyl, C 2 -C 6 alkynyl, C 1 -C 6 alkoxy, C 2 -C 6 alkanoyl, C 1 -C 6 hydroxyalkyl, C 1 -C 3 haloalkyl, C 1 -C 3 haloalkoxy, C 1 -C 6 alkylthio, (C 1 -C 6 alkoxy)C 1 -C 6 alkoxy, aminoC 1 -C 6 alkyl, mono-C 1 -C 6 alkylamino, di-C 1 -C 6 alkylamino, mono-C 1 -C 6 alkylcarboxamido, di-C 1 -C 6 alkylcarboxamido, C 1 -C 6 alkoxycarbonyl, phenyl, heteroaryl, and —(C═O)R 13 wherein R 13 is chosen from C 1 -C 6 alkyl, (C 3 -C 7 cycloalkyl)C 0 -C 2 alkyl, C 1 -C 3 haloalkyl, heterocycloalkyl, phenyl, and heteroaryl,

(phenoxy)C 0 -C 2 alkyl,

substituted (phenoxy)C 0 -C 2 alkyl chosen from mono-, di-, and tri-substituted (phenoxy)C 0 -C 2 alkyl, wherein the substituents are independently chosen from hydroxy, nitro, cyano, amino, halo, —SO 2 NH 2 , oxo, —COOH, C 1 -C 6 alkyl, C 2 -C 6 alkenyl, C 2 -C 6 alkynyl, C 1 -C 6 alkoxy, C 2 -C 6 alkanoyl, C 1 -C 6 hydroxyalkyl, C 1 -C 3 haloalkyl, C 1 -C 3 haloalkoxy, C 1 -C 6 alkylthio, (C 1 -C 6 alkoxy)C 1 -C 6 alkoxy, aminoC 1 -C 6 alkyl, mono-C 1 -C 6 alkylamino, di-C 1 -C 6 alkylamino, mono-C 1 -C 6 alkylcarboxamido, di-C 1 -C 6 alkylcarboxamido, C 1 -C 6 alkoxycarbonyl, phenyl, heteroaryl, and —(C═O)R 13 wherein R 13 is chosen from C 1 -C 6 alkyl, (C 3 -C 7 cycloalkyl)C 0 -C 2 alkyl, C 1 -C 3 haloalkyl, heterocycloalkyl, phenyl, and heteroaryl,

(heteroaryl)C 0 -C 2 alkyl, and

substituted (heteroaryl)C 0 -C 2 alkyl chosen from mono-, di-, and tri-substituted (heteroaryl)C 0 -C 2 alkyl, wherein the substituents are independently chosen from hydroxy, nitro, cyano, amino, halo, —SO 2 NH 2 , oxo, —COOH, C 1 -C 6 alkyl, C 2 -C 6 alkenyl, C 2 -C 6 alkynyl, C 1 -C 6 alkoxy, C 2 -C 6 alkanoyl, C 1 -C 6 hydroxyalkyl, C 1 -C 3 haloalkyl, C 1 -C 3 haloalkoxy, C 1 -C 6 alkylthio, (C 1 -C 6 alkoxy)C 1 -C 6 alkoxy, aminoC 1 -C 6 alkyl, mono-C 1 -C 6 alkylamino, di-C 1 -C 6 alkylamino, mono-C 1 -C 6 alkylcarboxamido, di-C 1 -C 6 alkylcarboxamido, C 1 -C 6 alkoxycarbonyl, phenyl, heteroaryl, and —(C═O)R 13 wherein R 13 is chosen from C 1 -C 6 alkyl, (C 3 -C 7 cycloalkyl)C 0 -C 2 alkyl, C 1 -C 3 haloalkyl, heterocycloalkyl, phenyl, and heteroaryl;

Z 1 is chosen from

wherein

R 4 is chosen from

hydrogen,

C 1 -C 6 alkyl,

substituted C 1 -C 6 alkyl chosen from C 1 -C 6 alkyl substituted by 1 or more substituents, wherein the substituents are chosen from hydroxy, nitro, cyano, amino, halo, oxo, C 1 -C 6 alkyl, C 2 -C 6 alkenyl, C 2 -C 6 alkynyl, C 1 -C 6 alkoxy, C 1 -C 3 haloalkyl, C 1 -C 3 haloalkoxy, C 1 -C 6 alkylthio, (C 1 -C 6 alkoxy)C 1 -C 6 alkoxy, aminoC 1 -C 6 alkyl, mono-C 1 -C 6 alkylamino, di-C 1 -C 6 alkylamino, and —C(O)R 14 wherein R 14 is chosen from C 1 -C 6 alkyl, C 1 -C 3 haloalkyl, and phenyl,

C 3 -C 7 cylcoalkyl,

substituted C 3 -C 7 cycloalkyl chosen from C 3 -C 7 cycloalkyl substituted by 1 or more substituents, wherein the substituents are chosen from hydroxy, nitro, cyano, amino, halo, oxo, C 1 -C 6 alkyl, C 2 -C 6 alkenyl, C 2 -C 6 alkynyl, C 1 -C 6 alkoxy, C 1 -C 3 haloalkyl, C 1 -C 3 haloalkoxy, C 1 -C 6 alkylthio, (C 1 -C 6 alkoxy)C 1 -C 6 alkoxy, aminoC 1 -C 6 alkyl, mono-C 1 -C 6 alkylamino, di-C 1 -C 6 alkylamino, and —C(O)R 14 wherein R 14 is chosen from C 1 -C 6 alkyl, C 1 -C 3 haloalkyl, and phenyl,

heterocycloalkyl,

substituted heterocycloalkyl chosen from heterocycloalkyl substituted by 1 or more substituents, wherein the substituents are chosen from hydroxy, nitro, cyano, amino, halo, oxo, C 1 -C 6 alkyl, C 2 -C 6 alkenyl, C 2 -C 6 alkynyl, C 1 -C 6 alkoxy, C 1 -C 3 haloalkyl, C 1 -C 3 haloalkoxy, C 1 -C 6 alkylthio, (C 1 -C 6 alkoxy)C 1 -C 6 alkoxy, aminoC 1 -C 6 alkyl, mono-C 1 -C 6 alkylamino, di-C 1 -C 6 alkylamino, and —C(O)R 14 wherein R 14 is chosen from C 1 -C 6 alkyl, C 1 -C 3 haloalkyl, and phenyl,

phenyl,

substituted phenyl chosen from phenyl substituted by 1 or more substituents, wherein the substituents are chosen from hydroxy, nitro, cyano, amino, halo, oxo, C 1 -C 6 alkyl, C 2 -C 6 alkenyl, C 2 -C 6 alkynyl, C 1 -C 6 alkoxy, C 1 -C 3 haloalkyl, C 1 -C 3 haloalkoxy, C 1 -C 6 alkylthio, (C 1 -C 6 alkoxy)C 1 -C 6 alkoxy, aminoC 1 -C 6 alkyl, mono-C 1 -C 6 alkylamino, di-C 1 -C 6 alkylamino, and —C(O)R 14 wherein R 14 is chosen from C 1 -C 6 alkyl, C 1 -C 3 haloalkyl, and phenyl,

heteroaryl, and

substituted heteroaryl chosen from heteroaryl substituted by 1 or more substituents, wherein the substituents are chosen from hydroxy, nitro, cyano, amino, halo, oxo, C 1 -C 6 alkyl, C 2 -C 6 alkenyl, C 2 -C 6 alkynyl, C 1 -C 6 alkoxy, C 1 -C 3 haloalkyl, C 1 -C 3 haloalkoxy, C 1 -C 6 alkylthio, (C 1 -C 6 alkoxy)C 1 -C 6 alkoxy, aminoC 1 -C 6 alkyl, mono-C 1 -C 6 alkylamino, di-C 1 -C 6 alkylamino, and —C(O)R 14 wherein R 14 is chosen from C 1 -C 6 alkyl, C 1 -C 3 haloalkyl, and phenyl;

Q is chosen from phenylene and pyridylidene; and

R 3 is chosen from

hydrogen,

halo,

C 1 -C 7 alkyl,

heterocycloalkyl,

substituted heterocycloalkyl chosen from mono-, di-, and tri-substituted heterocycloalkyl, wherein the substituents are independently chosen from hydroxy, nitro, cyano, amino, halo, —SO 2 NH 2 , oxo, C 1 -C 6 alkyl, C 2 -C 6 alkenyl, C 2 -C 6 alkynyl, C 1 -C 6 alkoxy, C 1 -C 3 haloalkyl, C 1 -C 3 haloalkoxy, C 1 -C 6 alkylthio, (C 1 -C 6 -alkoxy)C 1 -C 6 alkoxy, mono-C 1 -C 6 alkylamino, di-C 1 -C 6 alkylamino, aminoC 1 -C 6 alkyl, and —C(O)R 14 wherein R 14 is chosen from C 1 -C 6 alkyl, C 1 -C 3 haloalkyl, and phenyl,

C 3 -C 7 cycloalkyl,

substituted C 3 -C 7 cycloalkyl chosen from mono-, di-, and tri-substituted C 3 -C 7 cycloalkyl, wherein the substituents are independently chosen from hydroxy, nitro, cyano, amino, halo, —SO 2 NH 2 , oxo, C 1 -C 6 alkyl, C 2 -C 6 alkenyl, C 2 -C 6 alkynyl, C 1 -C 6 alkoxy, C 1 -C 3 haloalkyl, C 1 -C 3 haloalkoxy, C 1 -C 6 alkylthio, (C 1 -C 6 -alkoxy)C 1 -C 6 alkoxy, mono-C 1 -C 6 alkylamino, di-C 1 -C 6 alkylamino, aminoC 1 -C 6 alkyl, and —C(O)R 14 wherein R 14 is chosen from C 1 -C 6 alkyl, C 1 -C 3 haloalkyl, and phenyl,

heteroaryl, and

substituted heteroaryl chosen from mono-, di-, and tri-substituted heteroaryl, wherein the substituents are independently chosen from hydroxy, nitro, cyano, amino, halo, —SO 2 NH 2 , oxo, C 1 -C 6 alkyl, C 2 -C 6 alkenyl, C 2 -C 6 alkynyl, C 1 -C 6 alkoxy, C 1 -C 3 haloalkyl, C 1 -C 3 haloalkoxy, C 1 -C 6 alkylthio, (C 1 -C 6 -alkoxy)C 1 -C 6 alkoxy, mono-C 1 -C 6 alkylamino, di-C 1 -C 6 alkylamino, aminoC 1 -C 6 alkyl, and —C(O)R 14 wherein R 14 is chosen from C 1 -C 6 alkyl, C 1 -C 3 haloalkyl, and phenyl.

2 . At least one chemical entity of claim 1 , wherein A is 0.

3 . At least one chemical entity of claim 1 , wherein A is 1.

4 . At least one chemical entity of claim 1 , wherein

R 1 is chosen from

phenyl substituted with a substituent chosen from

hydroxy,

—CHO,

—COOH,

—CONH 2 ,

—CONHOH,

C 2 -C 6 alkenyl,

substituted C 2 -C 6 alkenyl chosen from mono-, di-, and tri-substituted C 2 -C 6 alkenyl wherein the substituents are independently chosen from halo, hydroxy, amino, oxo, —COOH, —CONH 2 , C 1 -C 4 alkyl, C 2 -C 4 alkenyl, C 2 -C 4 alkynyl, C 1 -C 6 alkoxy, C 2 -C 4 alkanoyl, C 1 -C 4 alkylthio, C 1 -C 2 haloalkyl, C 1 -C 2 haloalkoxy, C 1 -C 4 alkoxycarbonyl, mono-C 1 -C 4 alkylamino, di-C 1 -C 4 alkylamino, mono-C 1 -C 4 alkylcarboxamido, di-C 1 -C 4 alkylcarboxamido, and phenyl,

C 2 -C 6 alkynyl,

substituted C 2 -C 6 alkynyl chosen from mono-, di-, and tri-substituted C 2 -C 6 alkynyl wherein the substituents are independently chosen from halo, hydroxy, amino, oxo, —COOH, —CONH 2 , C 1 -C 4 alkyl, C 2 -C 4 alkenyl, C 2 -C 4 alkynyl, C 1 -C 6 alkoxy, C 2 -C 4 alkanoyl, C 1 -C 4 alkylthio, C 1 -C 2 haloalkyl, C 1 -C 2 haloalkoxy, C 1 -C 4 alkoxycarbonyl, mono-C 1 -C 4 alkylamino, di-C 1 -C 4 alkylamino, mono-C 1 -C 4 alkylcarboxamido, di-C 1 -C 4 alkylcarboxamido, and phenyl,

C 1 -C 6 alkyl,

substituted C 1 -C 6 alkyl chosen from mono-, di-, and tri-substituted C 1 -C 6 alkyl wherein the substituents are independently chosen from halo, hydroxy, amino, oxo, —COOH, —CONH 2 , C 1 -C 4 alkyl, C 2 -C 4 alkenyl, C 2 -C 4 alkynyl, C 1 -C 6 alkoxy, C 2 -C 4 alkanoyl, C 1 -C 4 alkylthio, C 1 -C 2 haloalkyl, C 1 -C 2 haloalkoxy, C 1 -C 4 alkoxycarbonyl, mono-C 1 -C 4 alkylamino, di-C 1 -C 4 alkylamino, mono-C 1 -C 4 alkylcarboxamido, di-C 1 -C 4 alkylcarboxamido, and phenyl,

C 1 -C 6 alkoxy,

substituted C 1 -C 6 alkoxy chosen from mono-, di-, and tri-substituted C 1 -C 6 alkoxy wherein the substituents are independently chosen from halo, hydroxy, amino, oxo, —COOH, —CONH 2 , C 1 -C 4 alkyl, C 2 -C 4 alkenyl, C 2 -C 4 alkynyl, C 1 -C 6 alkoxy, C 2 -C 4 alkanoyl, C 1 -C 4 alkylthio, C 1 -C 2 haloalkyl, C 1 -C 2 haloalkoxy, C 1 -C 4 alkoxycarbonyl, mono-C 1 -C 4 alkylamino, di-C 1 -C 4 alkylamino, mono-C 1 -C 4 alkylcarboxamido, di-C 1 -C 4 alkylcarboxamido, and phenyl,

heterocycloalkyl,

substituted heterocycloalkyl chosen from mono-, di-, and tri-substituted heterocycloalkyl wherein the substituents are independently chosen from halo, hydroxy, amino, oxo, —COOH, —CONH 2 , C 1 -C 4 alkyl, C 2 -C 4 alkenyl, C 2 -C 4 alkynyl, C 1 -C 6 alkoxy, C 2 -C 4 alkanoyl, C 1 -C 4 alkylthio, C 1 -C 2 haloalkyl, C 1 -C 2 haloalkoxy, C 1 -C 4 alkoxycarbonyl, mono-C 1 -C 4 alkylamino, di-C 1 -C 4 alkylamino, mono-C 1 -C 4 alkylcarboxamido, di-C 1 -C 4 alkylcarboxamido, and phenyl,

aryl,

substituted aryl chosen from mono-, di-, and tri-substituted aryl wherein the substituents are independently chosen from halo, hydroxy, amino, oxo, —COOH, —CONH 2 , C 1 -C 4 alkyl, C 2 -C 4 alkenyl, C 2 -C 4 alkynyl, C 1 -C 6 alkoxy, C 2 -C 4 alkanoyl, C 1 -C 4 alkylthio, C 1 -C 2 haloalkyl, C 1 -C 2 haloalkoxy, C 1 -C 4 alkoxycarbonyl, mono-C 1 -C 4 alkylamino, di-C 1 -C 4 alkylamino, mono-C 1 -C 4 alkylcarboxamido, di-C 1 -C 4 alkylcarboxamido, and phenyl,

heteroaryl,

substituted heteroaryl chosen from mono-, di-, and tri-substituted heteroaryl wherein the substituents are independently chosen from halo, hydroxy, amino, oxo, —COOH, —CONH 2 , C 1 -C 4 alkyl, C 2 -C 4 alkenyl, C 2 -C 4 alkynyl, C 1 -C 6 alkoxy, C 2 -C 4 alkanoyl, C 1 -C 4 alkylthio, C 1 -C 2 haloalkyl, C 1 -C 2 haloalkoxy, C 1 -C 4 alkoxycarbonyl, mono-C 1 -C 4 alkylamino, di-C 1 -C 4 alkylamino, mono-C 1 -C 4 alkylcarboxamido, di-C 1 -C 4 alkylcarboxamido, and phenyl,

—C 1 -C 6 alkylNR 10 (SO 2 )R 11 ,

substituted —C 1 -C 6 alkylNR 10 (SO 2 )R 11 chosen from mono-, di-, and tri-substituted —C 1 -C 6 alkylNR 10 (SO 2 )R 11 wherein the substituents are independently chosen from halo, hydroxy, amino, oxo, —COOH, —CONH 2 , C 1 -C 4 alkyl, C 2 -C 4 alkenyl, C 2 -C 4 alkynyl, C 1 -C 6 alkoxy, C 2 -C 4 alkanoyl, C 1 -C 4 alkylthio, C 1 -C 2 haloalkyl, C 1 -C 2 haloalkoxy, C 1 -C 4 alkoxycarbonyl, mono-C 1 -C 4 alkylamino, di-C 1 -C 4 alkylamino, mono-C 1 -C 4 alkylcarboxamido, di-C 1 -C 4 alkylcarboxamido, and phenyl,

—C 0 -C 6 alkylNR 10 (C═O)R 11 ,

substituted —C 0 -C 6 alkylNR 10 (C═O)R 11 , chosen from mono-, di-, and tri-substituted —C 0 -C 6 alkylNR 10 (C═O)R 11 , wherein the substituents are independently chosen from halo, hydroxy, amino, oxo, —COOH, —CONH 2 , C 1 -C 4 alkyl, C 2 -C 4 alkenyl, C 2 -C 4 alkynyl, C 1 -C 6 alkoxy, C 2 -C 4 alkanoyl, C 1 -C 4 alkylthio, C 1 -C 2 haloalkyl, C 1 -C 2 haloalkoxy, C 1 -C 4 alkoxycarbonyl, mono-C 1 -C 4 alkylamino, di-C 1 -C 4 alkylamino, mono-C 1 -C 4 alkylcarboxamido, di-C 1 -C 4 alkylcarboxamido, and phenyl,

—C 0 -C 6 alkyl(SO 2 )R 10 ,

substituted —C 0 -C 6 alkyl(SO 2 )R 10 chosen from mono-, di-, and tri-substituted —C 0 -C 6 alkyl(SO 2 )R 10 wherein the substituents are independently chosen from halo, hydroxy, amino, oxo, —COOH, —CONH 2 , C 1 -C 4 alkyl, C 2 -C 4 alkenyl, C 2 -C 4 alkynyl, C 1 -C 6 alkoxy, C 2 -C 4 alkanoyl, C 1 -C 4 alkylthio, C 1 -C 2 haloalkyl, C 1 -C 2 haloalkoxy, C 1 -C 4 alkoxycarbonyl, mono-C 1 -C 4 alkylamino, di-C 1 -C 4 alkylamino, mono-C 1 -C 4 alkylcarboxamido, di-C 1 -C 4 alkylcarboxamido, and phenyl,

—C 0 -C 6 alkylNR 10 (C═O)NR 11 R 12 ,

substituted —C 0 -C 6 alkylNR 10 (C═O)NR 11 R 12 chosen from mono-, di-, and tri-substituted —C 0 -C 6 alkylNR 10 (C═O)NR 11 R 12 , wherein the substituents are independently chosen from halo, hydroxy, amino, oxo, —COOH, —CONH 2 , C 1 -C 4 alkyl, C 2 -C 4 alkenyl, C 2 -C 4 alkynyl, C 1 -C 6 alkoxy, C 2 -C 4 alkanoyl, C 1 -C 4 alkylthio, C 1 -C 2 haloalkyl, C 1 -C 2 haloalkoxy, C 1 -C 4 alkoxycarbonyl, mono-C 1 -C 4 alkylamino, di-C 1 -C 4 alkylamino, mono-C 1 -C 4 alkylcarboxamido, di-C 1 -C 4 alkylcarboxamido, and phenyl, and

-L-G, where

L is chosen from

C 1 -C 2 alkylene,

substituted C 1 -C 2 alkylene chosen from mono-, di-, and tri-substituted C 1 -C 2 alkylene wherein the substituents are independently chosen from halo, hydroxy, amino, oxo, —COOH, —CONH 2 , C 1 -C 4 alkyl, C 2 -C 4 alkenyl, C 2 -C 4 alkynyl, C 1 -C 6 alkoxy, C 2 -C 4 alkanoyl, C 1 -C 4 alkylthio, C 1 -C 2 haloalkyl, C 1 -C 2 haloalkoxy, C 1 -C 4 alkoxycarbonyl, mono-C 1 -C 4 alkylamino, di-C 1 -C 4 alkylamino, mono-C 1 -C 4 alkylcarboxamido, di-C 1 -C 4 alkylcarboxamido, and phenyl,

C 0 -C 2 alkylene-O—,

substituted C 0 -C 2 alkylene-O— chosen from mono-, di-, and tri-substituted C 0 -C 2 alkylene-O— wherein the substituents are independently chosen from halo, hydroxy, amino, oxo, —COOH, —CONH 2 , C 1 -C 4 alkyl, C 2 -C 4 alkenyl, C 2 -C 4 alkynyl, C 1 -C 6 alkoxy, C 2 -C 4 alkanoyl, C 1 -C 4 alkylthio, C 1 -C 2 haloalkyl, C 1 -C 2 haloalkoxy, C 1 -C 4 alkoxycarbonyl, mono-C 1 -C 4 alkylamino, di-C 1 -C 4 alkylamino, mono-C 1 -C 4 alkylcarboxamido, di-C 1 -C 4 alkylcarboxamido, and phenyl,

—(C═O)—,

—(C 1 -C 2 alkylene)(C═O)—, and

substituted —(C 1 -C 2 alkylene)(C═O)— chosen from mono-, di-, and tri-substituted —(C 1 -C 2 alkylene)(C═O)— wherein the substituents are independently chosen from halo, hydroxy, amino, oxo, —COOH, —CONH 2 , C 1 -C 4 alkyl, C 2 -C 4 alkenyl, C 2 -C 4 alkynyl, C 1 -C 6 alkoxy, C 2 -C 4 alkanoyl, C 1 -C 4 alkylthio, C 1 -C 2 haloalkyl, C 1 -C 2 haloalkoxy, C 1 -C 4 alkoxycarbonyl, mono-C 1 -C 4 alkylamino, di-C 1 -C 4 alkylamino, mono-C 1 -C 4 alkylcarboxamido, di-C 1 -C 4 alkylcarboxamido, and phenyl, and

G is chosen from

heterocycloalkyl,

substituted heterocycloalkyl chosen from mono-, di-, and tri-substituted heterocycloalkyl, wherein the substituents are independently chosen from halo, hydroxy, amino, oxo, —COOH, —CONH 2 , C 1 -C 4 alkyl, C 2 -C 4 alkenyl, C 2 -C 4 alkynyl, C 1 -C 6 alkoxy, C 2 -C 4 alkanoyl, C 1 -C 4 alkylthio, C 1 -C 2 haloalkyl, C 1 -C 2 haloalkoxy, C 1 -C 4 alkoxycarbonyl, mono-C 1 -C 4 alkylamino, di-C 1 -C 4 alkylamino, mono-C 1 -C 4 alkylcarboxamido, di-C 1 -C 4 alkylcarboxamido, and phenyl,

C 3 -C 7 cycloalkyl,

substituted C 3 -C 7 cycloalkyl chosen from mono-, di-, and tri-substituted C 3 -C 7 cycloalkyl wherein the substituents are independently chosen from halo, hydroxy, amino, oxo, —COOH, —CONH 2 , C 1 -C 4 alkyl, C 2 -C 4 alkenyl, C 2 -C 4 alkynyl, C 1 -C 6 alkoxy, C 2 -C 4 alkanoyl, C 1 -C 4 alkylthio, C 1 -C 2 haloalkyl, C 1 -C 2 haloalkoxy, C 1 -C 4 alkoxycarbonyl, mono-C 1 -C 4 alkylamino, di-C 1 -C 4 alkylamino, mono-C 1 -C 4 alkylcarboxamido, di-C 1 -C 4 alkylcarboxamido, and phenyl,

aryl,

heteroaryl, and

pyridyl substituted with a substituent chosen from

hydroxy,

—CHO,

—COOH,

—CONH 2 ,

—CONHOH,

C 2 -C 6 alkenyl,

C 2 -C 6 alkynyl,

C 1 -C 6 alkyl,

substituted C 1 -C 6 alkyl chosen from mono-, di-, and tri-substituted C 1 -C 6 alkyl wherein the substituents are independently chosen from halo, hydroxy, amino, oxo, —COOH, —CONH 2 , C 1 -C 4 alkyl, C 2 -C 4 alkenyl, C 2 -C 4 alkynyl, C 1 -C 6 alkoxy, C 2 -C 4 alkanoyl, C 1 -C 4 alkylthio, C 7 -C 2 haloalkyl, C 1 -C 2 haloalkoxy, C 1 -C 4 alkoxycarbonyl, mono-C 1 -C 4 alkylamino, di-C 1 -C 4 alkylamino, mono-C 1 -C 4 alkylcarboxamido, di-C 1 -C 4 alkylcarboxamido, and phenyl,

C 1 -C 6 alkoxy,

heterocycloalkyl,

aryl,

heteroaryl,

—C 1 -C 6 alkylNR 10 (SO 2 )R 11 ,

—C 0 -C 6 alkylNR 10 (C═O)R 11 ,

substituted —C 0 -C 6 alkylNR 10 (C═O)R 11 chosen from mono-, di-, and tri-substituted —C 0 -C 6 alkylNR 10 (C═O)R 11 , wherein the substituents are independently chosen from halo, hydroxy, amino, oxo, —COOH, —CONH 2 , C 1 -C 4 alkyl, C 2 -C 4 alkenyl, C 2 -C 4 alkynyl, C 1 -C 6 alkoxy, C 2 -C 4 alkanoyl, C 1 -C 4 alkylthio, C 1 -C 2 haloalkyl, C 1 -C 2 haloalkoxy, C 1 -C 4 alkoxycarbonyl, mono-C 1 -C 4 alkylamino, di-C 1 -C 4 alkylamino, mono-C 1 -C 4 alkylcarboxamido, di-C 1 -C 4 alkylcarboxamido, and phenyl,

—C 0 -C 6 alkyl(SO 2 )R 10 ,

—C 0 -C 6 alkylNR 10 (C═O)NR 11 R 12 ,

-L-G, where

L is chosen from

C 1 -C 2 alkylene,

C 0 -C 2 alkylene-O—,

—(C═O)—,

—(C 1 -C 2 alkylene)(C═O)—, and

G is chosen from

heterocycloalkyl,

C 3 -C 7 cycloalkyl,

aryl,

heteroaryl, and

5 . At least one chemical entity of claim 4 , wherein

R 1 is chosen from

phenyl substituted with a group chosen from hydroxy, —CHO, —COOH, —CONH 2 , and —CONHOH, and

pyridyl substituted with a group chosen from hydroxy, —CHO, —COOH, —CONH 2 , and —CONHOH,

wherein R 1 is optionally substituted with 1 or more substituents independently chosen from hydroxy, nitro, cyano, amino, —SO 2 NH 2 , halo, C 1 -C 6 alkyl, C 2 -C 6 alkanoyl, C 1 -C 4 haloalkyl, C 1 -C 4 haloalkoxy, C 1 -C 6 alkylthio, C 3 -C 7 cycloalkyl, (C 1 -C 6 alkoxy)C 0 -C 6 alkyl, (mono-C 1 -C 6 alkylamino)C 0 -C 6 alkyl, (di-C 1 -C 6 alkylamino)C 0 -C 6 alkyl, and C 1 -C 6 alkoxycarbonyl.

6 . At least one chemical entity of claim 5 , wherein

R 1 is chosen from

phenyl substituted with a group chosen from hydroxy, —CHO, —COOH, —CONH 2 , and —CONHOH, and

pyridyl substituted with a group chosen from hydroxy, —CHO, —COOH, —CONH 2 , and —CONHOH, wherein

R 1 is optionally further mono-, di-, or tri-substituted with groups independently chosen from hydroxy, cyano, halo, C 1 -C 4 alkyl, C 2 -C 4 alkanoyl, C 1 -C 2 haloalkyl, C 1 -C 2 haloalkoxy, C 1 -C 4 alkoxy, mono-C 1 -C 4 alkylamino, and di-C 1 -C 4 alkylamino.

7 . At least one chemical entity of claim 6 , wherein

R 1 is chosen from

phenyl substituted with a group chosen from hydroxy, —CHO, —COOH, —CONH 2 , and —CONHOH, and

pyridyl substituted with a group chosen from hydroxy, —CHO, —COOH, —CONH 2 , and —CONHOH, wherein

R 1 is optionally further mono-, di-, or tri-substituted with groups independently chosen from hydroxy, cyano, halo, C 1 -C 2 alkyl, and C 1 -C 2 alkoxy.

8 . At least one chemical entity of claim 4 , wherein

R 1 is chosen from

phenyl substituted with a group chosen from

C 2 -C 6 alkenyl,

C 2 -C 6 alkynyl,

C 1 -C 6 alkyl,

C 1 -C 6 alkoxy,

heterocycloalkyl,

aryl,

heteroaryl, and

pyridyl substituted with a group chosen from

C 2 -C 6 alkenyl,

C 2 -C 6 alkynyl,

C 1 -C 6 alkyl,

C 1 -C 6 alkoxy,

heterocycloalkyl,

aryl,

heteroaryl, and

9 . At least one chemical entity of claim 8 , wherein

R 1 is chosen from

phenyl substituted with a group chosen from

C 1 -C 6 alkyl,

substituted C 1 -C 6 alkyl chosen from mono-, di-, and tri-substituted C 1 -C 6 alkyl, wherein the substituents are independently chosen from halo, hydroxy, cyano, amino, oxo, —COOH, —CONH 2 , C 1 -C 4 alkyl, C 1 -C 6 alkoxy, C 2 -C 4 alkanoyl, C 1 -C 2 haloalkyl, C 1 -C 2 haloalkoxy, C 1 -C 4 alkoxycarbonyl, mono-C 1 -C 6 alkylamino, di-C 1 -C 6 alkylamino, mono-C 1 -C 4 alkylcarboxamido, and di-C 1 -C 4 alkylcarboxamido,

C 1 -C 6 alkoxy, and

substituted C 1 -C 6 alkoxy chosen from mono-, di-, and tri-substituted C 1 -C 6 alkoxy, wherein the substituents are independently chosen from halo, hydroxy, cyano, amino, oxo, —COOH, —CONH 2 , C 1 -C 4 alkyl, C 1 -C 6 alkoxy, C 2 -C 4 alkanoyl, C 1 -C 2 haloalkyl, C 1 -C 2 haloalkoxy, C 1 -C 4 alkoxycarbonyl, mono-C 1 -C 6 alkylamino, di-C 1 -C 6 alkylamino, mono-C 1 -C 4 alkylcarboxamido, and di-C 1 -C 4 alkylcarboxamido, and

pyridyl substituted with a group chosen from

C 1 -C 6 alkyl,

C 1 -C 6 alkoxy, and

wherein R 1 is optionally further mono-, di-, or tri-substituted with substituents independently chosen from hydroxy, cyano, halo, C 1 -C 4 alkyl, C 2 -C 4 alkanoyl, C 1 -C 2 haloalkyl, C 1 -C 2 haloalkoxy, C 1 -C 4 alkoxy, mono-C 1 -C 4 alkylamino, and di-C 1 -C 4 alkylamino.

10 . At least one chemical entity of claim 9 , wherein

R 1 is chosen from

phenyl substituted with a group chosen from C 1 -C 6 hydroxyalkyl, C 1 -C 6 hydroxyalkoxy, (mono-C 1 -C 6 alkylamino)C 1 -C 6 alkoxy, (di-C 1 -C 6 alkylamino)C 1 -C 6 alkoxy, (C 1 -C 6 alkoxy)(C 1 -C 6 alkylamino)C 0 -C 6 alkyl, and (C 1 -C 6 alkoxy)(C 1 -C 6 alkoxy)C 1 -C 6 alkoxy, and

pyridyl substituted with a group chosen from C 1 -C 6 hydroxyalkyl, C 1 -C 6 hydroxyalkoxy, (mono-C 1 -C 6 alkylamino)C 1 -C 6 alkoxy, (di-C 1 -C 6 alkylamino)C 1 -C 6 alkoxy, (C 1 -C 6 alkoxy)(C 1 -C 6 alkylamino)C 0 -C 6 alkyl, and (C 1 -C 6 alkoxy)(C 1 -C 6 alkoxy)C 1 -C 6 alkoxy,

wherein R 1 is optionally further mono-, di-, or tri-substituted with substituents independently chosen from hydroxy, cyano, halo, C 1 -C 2 alkyl, and C 1 -C 2 alkoxy.

11 . At least one chemical entity of claim 4 , wherein

R 1 is chosen from

phenyl substituted with a group chosen from

pyrrolidinyl,

substituted pyrrolidinyl chosen from mono-, di- and tri-substituted pyrrolidinyl, wherein the substituents are independently chosen from halo, hydroxy, cyano, amino, oxo, —COOH, —CONH 2 , C 1 -C 4 alkyl, C 1 -C 6 alkoxy, C 2 -C 4 alkanoyl, C 1 -C 2 haloalkyl, C 1 -C 2 haloalkoxy, C 1 -C 4 alkoxycarbonyl, mono-C 1 -C 4 alkylamino, di-C 1 -C 4 alkylamino, mono-C 1 -C 4 alkylcarboxamido, and di-C 1 -C 4 alkylcarboxamido,

morpholinyl,

substituted morpholinyl chosen from mono-, di- and tri-substituted morpholinyl, wherein the substituents are independently chosen from halo, hydroxy, cyano, amino, oxo, —COOH, —CONH 2 , C 1 -C 4 alkyl, C 1 -C 6 alkoxy, C 2 -C 4 alkanoyl, C 1 -C 2 haloalkyl, C 1 -C 2 haloalkoxy, C 1 -C 4 alkoxycarbonyl, mono-C 1 -C 4 alkylamino, di-C 1 -C 4 alkylamino, mono-C 1 -C 4 alkylcarboxamido, and di-C 1 -C 4 alkylcarboxamido,

thiomorpholinyl,

substituted thiomorpholinyl chosen from mono-, di- and tri-substituted thiomorpholinyl, wherein the substituents are independently chosen from halo, hydroxy, cyano, amino, oxo, —COOH, —CONH 2 , C 1 -C 4 alkyl, C 1 -C 6 alkoxy, C 2 -C 4 alkanoyl, C 1 -C 2 haloalkyl, C 1 -C 2 haloalkoxy, C 1 -C 4 alkoxycarbonyl, mono-C 1 -C 4 alkylamino, di-C 1 -C 4 alkylamino, mono-C 1 -C 4 alkylcarboxamido, and di-C 1 -C 4 alkylcarboxamido,

piperazinyl,

substituted piperazinyl chosen from mono-, di- and tri-substituted piperazinyl, wherein the substituents are independently chosen from halo, hydroxy, cyano, amino, oxo, —COOH, —CONH 2 , C 1 -C 4 alkyl, C 1 -C 6 alkoxy, C 2 -C 4 alkanoyl, C 1 -C 2 haloalkyl, C 1 -C 2 haloalkoxy, C 1 -C 4 alkoxycarbonyl, mono-C 1 -C 4 alkylamino, di-C 1 -C 4 alkylamino, mono-C 1 -C 4 alkylcarboxamido, and di-C 1 -C 4 alkylcarboxamido,

piperidinyl,

substituted piperidinyl chosen from mono-, di- and tri-substituted piperidinyl, wherein the substituents are independently chosen from halo, hydroxy, cyano, amino, oxo, —COOH, —CONH 2 , C 1 -C 4 alkyl, C 1 -C 6 alkoxy, C 2 -C 4 alkanoyl, C 1 -C 2 haloalkyl, C 1 -C 2 haloalkoxy, C 1 -C 4 alkoxycarbonyl, mono-C 1 -C 4 alkylamino, di-C 1 -C 4 alkylamino, mono-C 1 -C 4 alkylcarboxamido, and di-C 1 -C 4 alkylcarboxamido,

[1,4]diazepanyl,

substituted [1,4]diazepanyl chosen from mono-, di- and tri-substituted [1,4]diazepanyl, wherein the substituents are independently chosen from halo, hydroxy, cyano, amino, oxo, —COOH, —CONH 2 , C 1 -C 4 alkyl, C 1 -C 6 alkoxy, C 2 -C 4 alkanoyl, C 1 -C 2 haloalkyl, C 1 -C 2 haloalkoxy, C 1 -C 4 alkoxycarbonyl, mono-C 1 -C 4 alkylamino, di-C 1 -C 4 alkylamino, mono-C 1 -C 4 alkylcarboxamido, and di-C 1 -C 4 alkylcarboxamido,

octahydro-pyrido[1,2-a]pyrazin-2-yl,

substituted octahydro-pyrido[1,2-a]pyrazin-2-yl chosen from mono-, di-, and tri-substituted octahydro-pyrido[1,2-a]pyrazin-2-yl wherein the substituents are independently chosen from hhalo, hydroxy, cyano, amino, oxo, —COOH, —CONH 2 , C 1 -C 4 alkyl, C 1 -C 6 alkoxy, C 2 -C 4 alkanoyl, C 1 -C 2 haloalkyl, C 1 -C 2 haloalkoxy, C 1 -C 4 alkoxycarbonyl, mono-C 1 -C 4 alkylamino, di-C 1 -C 4 alkylamino, mono-C 1 -C 4 alkylcarboxamido, and di-C 1 -C 4 alkylcarboxamido,

phenyl,

substituted phenyl chosen from mono-, di- and tri-substituted phenyl, wherein the substituents are independently chosen from halo, hydroxy, cyano, amino, oxo, —COOH, —CONH 2 , C 1 -C 4 alkyl, C 1 -C 6 alkoxy, C 2 -C 4 alkanoyl, C 1 -C 2 haloalkyl, C 1 -C 2 haloalkoxy, C 1 -C 4 alkoxycarbonyl, mono-C 1 -C 4 alkylamino, di-C 1 -C 4 alkylamino, mono-C 1 -C 4 alkylcarboxamido, and di-C 1 -C 4 alkylcarboxamido,

imidazolyl,

substituted imidazolyl chosen from mono-, di- and tri-substituted imidazolyl, wherein the substituents are independently chosen from halo, hydroxy, cyano, amino, oxo, —COOH, —CONH 2 , C 1 -C 4 alkyl, C 1 -C 6 alkoxy, C 2 -C 4 alkanoyl, C 1 -C 2 haloalkyl, C 1 -C 2 haloalkoxy, C 1 -C 4 alkoxycarbonyl, mono-C 1 -C 4 alkylamino, di-C 1 -C 4 alkylamino, mono-C 1 -C 4 alkylcarboxamido, and di-C 1 -C 4 alkylcarboxamido,

5,6-dihydro-8H-[1,2,4]triazolo[4,3-a]pyrazine,

substituted 5,6-dihydro-8H-[1,2,4]triazolo[4,3-a]pyrazine chosen from mono-, di- and tri-substituted 5,6-dihydro-8H-[1,2,4]triazolo[4,3-a]pyrazine, wherein the substituents are independently chosen from halo, hydroxy, cyano, amino, oxo, —COOH, —CONH 2 , C 1 -C 4 alkyl, C 1 -C 6 alkoxy, C 2 -C 4 alkanoyl, C 1 -C 2 haloalkyl, C 1 -C 2 haloalkoxy, C 1 -C 4 alkoxycarbonyl, mono-C 1 -C 4 alkylamino, di-C 1 -C 4 alkylamino, mono-C 1 -C 4 alkylcarboxamido, and di-C 1 -C 4 alkylcarboxamido, and

pyridyl substituted with a group chosen from

pyrrolidinyl,

morpholinyl,

thiomorpholinyl,

piperazinyl,

piperidinyl,

[1,4]diazepanyl,

octahydro-pyrido[1,2-a]pyrazin-2-yl,

substituted octahydro-pyrido[1,2-a]pyrazin-2-yl chosen from mono-, di-, and tri-substituted octahydro-pyrido[1,2-a]pyrazin-2-yl wherein the substituents are independently chosen from halo, hydroxy, cyano, amino, oxo, —COOH, —CONH 2 , C 1 -C 4 alkyl, C 1 -C 6 alkoxy, C 2 -C 4 alkanoyl, C 1 -C 2 haloalkyl, C 1 -C 2 haloalkoxy, C 1 -C 4 alkoxycarbonyl, mono-C 1 -C 4 alkylamino, di-C 1 -C 4 alkylamino, mono-C 1 -C 4 alkylcarboxamido, and di-C 1 -C 4 alkylcarboxamido,

phenyl,

imidazolyl,

5,6-dihydro-8H-[1,2,4]triazolo[4,3-a]pyrazine, and

12 . At least one chemical entity of claim 11 , wherein

R 1 is chosen from

phenyl substituted with a group chosen from

pyrrolidinyl,

substituted pyrrolidinyl chosen from mono-, di- and tri-substituted pyrrolidinyl, wherein the substituents are independently chosen from halo, hydroxy, oxo, —COOH, —CONH 2 , C 1 -C 4 alkyl, C 1 -C 6 alkoxy, C 2 -C 4 alkanoyl, C 1 -C 4 alkoxycarbonyl, mono-C 1 -C 4 alkylamino, di-C 1 -C 4 alkylamino, mono-C 1 -C 4 alkylcarboxamido, and di-C 1 -C 4 alkylcarboxamido,

morpholinyl,

substituted morpholinyl chosen from mono-, di- and tri-substituted morpholinyl, wherein the substituents are independently chosen from halo, hydroxy, oxo, —COOH, —CONH 2 , C 1 -C 4 alkyl, C 1 -C 6 alkoxy, C 2 -C 4 alkanoyl, C 1 -C 4 alkoxycarbonyl, mono-C 1 -C 4 alkylamino, di-C 1 -C 4 alkylamino, mono-C 1 -C 4 alkylcarboxamido, and di-C 1 -C 4 alkylcarboxamido,

thiomorpholinyl,

substituted thiomorpholinyl chosen from mono-, di- and tri-substituted thiomorpholinyl, wherein the substituents are independently chosen from halo, hydroxy, oxo, —COOH, —CONH 2 , C 1 -C 4 alkyl, C 1 -C 6 alkoxy, C 2 -C 4 alkanoyl, C 1 -C 4 alkoxycarbonyl, mono-C 1 -C 4 alkylamino, di-C 1 -C 4 alkylamino, mono-C 1 -C 4 alkylcarboxamido, and di-C 1 -C 4 alkylcarboxamido,

piperazinyl,

substituted piperazinyl chosen from mono-, di- and tri-substituted piperazinyl, wherein the substituents are independently chosen from halo, hydroxy, oxo, —COOH, —CONH 2 , C 1 -C 4 alkyl, C 1 -C 6 alkoxy, C 2 -C 4 alkanoyl, C 1 -C 4 alkoxycarbonyl, mono-C 1 -C 4 alkylamino, di-C 1 -C 4 alkylamino, mono-C 1 -C 4 alkylcarboxamido, and di-C 1 -C 4 alkylcarboxamido,

piperidinyl,

substituted piperidinyl chosen from mono-, di- and tri-substituted piperidinyl, wherein the substituents are independently chosen from halo, hydroxy, oxo, —COOH, —CONH 2 , C 1 -C 4 alkyl, C 1 -C 6 alkoxy, C 2 -C 4 alkanoyl, C 1 -C 4 alkoxycarbonyl, mono-C 1 -C 4 alkylamino, di-C 1 -C 4 alkylamino, mono-C 1 -C 4 alkylcarboxamido, and di-C 1 -C 4 alkylcarboxamido,

[1,4]diazepanyl,

substituted [1,4]diazepanyl chosen from mono-, di- and tri-substituted [1,4]diazepanyl, wherein the substituents are independently chosen from halo, hydroxy, oxo, —COOH, —CONH 2 , C 1 -C 4 alkyl, C 1 -C 6 alkoxy, C 2 -C 4 alkanoyl, C 1 -C 4 alkoxycarbonyl, mono-C 1 -C 4 alkylamino, di-C 1 -C 4 alkylamino, mono-C 1 -C 4 alkylcarboxamido, and di-C 1 -C 4 alkylcarboxamido,

octahydro-pyrido[1,2-a]pyrazin-2-yl,

substituted octahydro-pyrido[1,2-a]pyrazin-2-yl chosen from mono-, di-, and tri-substituted octahydro-pyrido[1,2-a]pyrazin-2-yl wherein the substituents are independently chosen from halo, hydroxy, oxo, —COOH, —CONH 2 , C 1 -C 4 alkyl, C 1 -C 6 alkoxy, C 2 -C 4 alkanoyl, C 1 -C 4 alkoxycarbonyl, mono-C 1 -C 4 alkylamino, di-C 1 -C 4 alkylamino, mono-C 1 -C 4 alkylcarboxamido, and di-C 1 -C 4 alkylcarboxamido,

phenyl,

substituted phenyl chosen from mono-, di- and tri-substituted phenyl, wherein the substituents are independently chosen from halo, hydroxy, oxo, —COOH, —CONH 2 , C 1 -C 4 alkyl, C 1 -C 6 alkoxy, C 2 -C 4 alkanoyl, C 1 -C 4 alkoxycarbonyl, mono-C 1 -C 4 alkylamino, di-C 1 -C 4 alkylamino, mono-C 1 -C 4 alkylcarboxamido, and di-C 1 -C 4 alkylcarboxamido,

imidazolyl,

substituted imidazolyl chosen from mono-, di- and tri-substituted imidazolyl, wherein the substituents are independently chosen from halo, hydroxy, oxo, —COOH, —CONH 2 , C 1 -C 4 alkyl, C 1 -C 6 alkoxy, C 2 -C 4 alkanoyl, C 1 -C 4 alkoxycarbonyl, mono-C 1 -C 4 alkylamino, di-C 1 -C 4 alkylamino, mono-C 1 -C 4 alkylcarboxamido, and di-C 1 -C 4 alkylcarboxamido,

5,6-dihydro-8H-[1,2,4]triazolo[4,3-a]pyrazine, and

substituted 5,6-dihydro-8H-[1,2,4]triazolo[4,3-a]pyrazine chosen from mono-, di- and tri-substituted 5,6-dihydro-8H-[1,2,4]triazolo[4,3-a]pyrazine, wherein the substituents are independently chosen from halo, hydroxy, oxo, —COOH, —CONH 2 , C 1 -C 4 alkyl, C 1 -C 6 alkoxy, C 2 -C 4 alkanoyl, C 1 -C 4 alkoxycarbonyl, mono-C 1 -C 4 alkylamino, di-C 1 -C 4 alkylamino, mono-C 1 -C 4 alkylcarboxamido, and di-C 1 -C 4 alkylcarboxamido, and

pyridyl substituted with a group chosen from

pyrrolidinyl,

morpholinyl,

thiomorpholinyl,

piperazinyl,

piperidinyl,

[1,4]diazepanyl,

octahydro-pyrido[1,2-a]pyrazin-2-yl,

substituted octahydro-pyrido[1,2-a]pyrazin-2-yl chosen from mono-, di-, and tri-substituted octahydro-pyrido[1,2-a]pyrazin-2-yl wherein the substituents are independently chosen from halo, hydroxy, oxo, —COOH, —CONH 2 , C 1 -C 4 alkyl, C 1 -C 6 alkoxy, C 2 -C 4 alkanoyl, C 1 -C 4 alkoxycarbonyl, mono-C 1 -C 4 alkylamino, di-C 1 -C 4 alkylamino, mono-C 1 -C 4 alkylcarboxamido, and di-C 1 -C 4 alkylcarboxamido,

phenyl,

imidazolyl,

5,6-dihydro-8H-[1,2,4]triazolo[4,3-a]pyrazine, and

substituted 5,6-dihydro-8H-[1,2,4]triazolo[4,3-a]pyrazine chosen from mono-, di- and tri-substituted 5,6-dihydro-8H-[1,2,4]triazolo[4,3-a]pyrazine, wherein the substituents are independently chosen from halo, hydroxy, oxo, —COOH, —CONH 2 , C 1 -C 4 alkyl, C 1 -C 6 alkoxy, C 2 -C 4 alkanoyl, C 1 -C 4 alkoxycarbonyl, mono-C 1 -C 4 alkylamino, di-C 1 -C 4 alkylamino, mono-C 1 -C 4 alkylcarboxamido, and di-C 1 -C 4 alkylcarboxamido,

wherein R 1 is optionally further mono-, di-, or tri-substituted with substituents independently chosen from hydroxy, cyano, halo, C 1 -C 2 alkyl, and C 1 -C 2 alkoxy.

13 . At least one chemical entity of claim 4 , wherein

R 1 is chosen from

phenyl substituted with a group chosen from

—C 1 -C 6 alkylene(C═O)OR 10 ,

substituted —C 1 -C 6 alkylene(C═O)OR 10 chosen from mono-, di-, and tri-substituted —C 1 -C 6 alkylene(C═O)OR 10 wherein the substituents are independently chosen from halo, hydroxy, amino, oxo, —COOH, —CONH 2 , C 1 -C 4 alkyl, C 2 -C 4 alkenyl, C 2 -C 4 alkynyl, C 1 -C 6 alkoxy, C 2 -C 4 alkanoyl, C 1 -C 4 alkylthio, C 1 -C 2 haloalkyl, C 1 -C 2 haloalkoxy, C 1 -C 4 alkoxycarbonyl, mono-C 1 -C 4 alkylamino, di-C 1 -C 4 alkylamino, mono-C 1 -C 4 alkylcarboxamido, di-C 1 -C 4 alkylcarboxamido, and phenyl,

—C 0 -C 6 alkylene(C═O)NR 10 R 11 ,

substituted —C 0 -C 6 alkylene(C═O)NR 10 R 11 chosen from mono-, di-, and tri-substituted —C 0 -C 6 alkylene(C═O)NR 10 R 11 wherein the substituents are independently chosen from halo, hydroxy, amino, oxo, —COOH, —CONH 2 , C 1 -C 4 alkyl, C 2 -C 4 alkenyl, C 2 -C 4 alkynyl, C 1 -C 6 alkoxy, C 2 -C 4 alkanoyl, C 1 -C 4 alkylthio, C 1 -C 2 haloalkyl, C 1 -C 2 haloalkoxy, C 1 -C 4 alkoxycarbonyl, mono-C 1 -C 4 alkylamino, di-C 1 -C 4 alkylamino, mono-C 1 -C 4 alkylcarboxamido, di-C 1 -C 4 alkylcarboxamido, and phenyl,

—C 1 -C 6 alkylNR 10 (SO 2 )R 11 ,

—C 0 -C 6 alkylNR 10 (C═O)R 11 ,

—C 0 -C 6 alkyl(SO 2 )R 10 ,

—C 0 -C 6 alkylNR 10 (C═O)NR 11 R 12 , and

pyridyl substituted with a group chosen from

—C 1 -C 6 alkylene(C═O)OR 10 ,

—C 0 -C 6 alkylene(C═O)NR 10 R 11 ,

—C 1 -C 6 alkylNR 10 (SO 2 )R 11 ,

—C 0 -C 6 alkylNR 10 (C═O)R 11 ,

—C 0 -C 6 alkyl(SO 2 )R 10 ,

—C 0 -C 6 alkylNR 10 (C═O)NR 11 R 12 , and

substituted —C 0 -C 6 alkylNR 10 (C═O)NR 11 R 12 chosen from mono-, di-, and tri-substituted C 0 -C 6 alkylNR 10 (C═O)NR 11 R 12 , wherein the substituents are independently chosen from halo, hydroxy, amino, oxo, —COOH, —CONH 2 , C 1 -C 4 alkyl, C 2 -C 4 alkenyl, C 2 -C 4 alkynyl, C 1 -C 6 alkoxy, C 2 -C 4 alkanoyl, C 1 -C 4 alkylthio, C 1 -C 2 haloalkyl, C 1 -C 2 haloalkoxy, C 1 -C 4 alkoxycarbonyl, mono-C 1 -C 4 alkylamino, di-C 1 -C 4 alkylamino, mono-C 1 -C 4 alkylcarboxamido, di-C 1 -C 4 alkylcarboxamido, and phenyl,

wherein R 10 , R 11 , and R 12 are independently chosen from hydrogen, hydroxy, C 1 -C 6 alkyl, C 1 -C 6 alkoxy, C 3 -C 7 cycloalkyl, and heterocycloalkyl.

14 . At least one chemical entity of claim 13 , wherein

R 1 is chosen from

phenyl substituted with a group chosen from

—C 1 -C 4 alkylene(C═O)OR 10 ,

substituted —C 1 -C 4 alkylene(C═O)OR 10 chosen from mono-, di-, and tri-substituted —C 1 -C 4 alkylene(C═O)OR 10 wherein the substituents are independently chosen from halo, hydroxy, amino, oxo, —COOH, —CONH 2 , C 1 -C 6 alkoxy, C 2 -C 4 alkanoyl, C 1 -C 4 alkoxycarbonyl, mono-C 1 -C 4 alkylamino, di-C 1 -C 4 alkylamino, mono-C 1 -C 4 alkylcarboxamido, and di-C 1 -C 4 alkylcarboxamido,

—C 0 -C 4 alkylene(C═O)NR 10 R 11 ,

substituted —C 0 -C 4 alkylene(C═O)NR 10 R 11 chosen from mono-, di-, and tri-substituted —C 0 -C 4 alkylene(C═O)NR 10 R 11 wherein the substituents are independently chosen from halo, hydroxy, amino, oxo, —COOH, —CONH 2 , C 1 -C 6 alkoxy, C 2 -C 4 alkanoyl, C 1 -C 4 alkoxycarbonyl, mono-C 1 -C 4 alkylamino, di-C 1 -C 4 alkylamino, mono-C 1 -C 4 alkylcarboxamido, and di-C 1 -C 4 alkylcarboxamido,

—C 1 -C 4 alkylNR 10 (SO 2 )R 11 ,

substituted —C 1 -C 4 alkylNR 10 (SO 2 )R 11 chosen from mono-, di-, and tri-substituted —C 1 -C 4 alkylNR 10 (SO 2 )R 11 wherein the substituents are independently chosen from halo, hydroxy, amino, oxo, —COOH, —CONH 2 , C 1 -C 6 alkoxy, C 2 -C 4 alkanoyl, C 1 -C 4 alkoxycarbonyl, mono-C 1 -C 4 alkylamino, di-C 1 -C 4 alkylamino, mono-C 1 -C 4 alkylcarboxamido, and di-C 1 -C 4 alkylcarboxamido,

—C 0 -C 4 alkylNR 10 (C═O)R 11 ,

substituted —C 0 -C 4 alkylNR 10 (C═O)R 11 , chosen from mono-, di-, and tri-substituted —C 0 -C 4 alkylNR 10 (C═O)R 11 , wherein the substituents are independently chosen from halo, hydroxy, amino, oxo, —COOH, —CONH 2 , C 1 -C 6 alkoxy, C 2 -C 4 alkanoyl, C 1 -C 4 alkoxycarbonyl, mono-C 1 -C 4 alkylamino, di-C 1 -C 4 alkylamino, mono-C 1 -C 4 alkylcarboxamido, and di-C 1 -C 4 alkylcarboxamido,

—C 0 -C 4 alkyl(SO 2 )R 10 ,

substituted —C 0 -C 4 alkyl(SO 2 )R 10 chosen from mono-, di-, and tri-substituted —C 0 -C 4 alkyl(SO 2 )R 10 wherein the substituents are independently chosen from halo, hydroxy, amino, oxo, —COOH, —CONH 2 , C 1 -C 6 alkoxy, C 2 -C 4 alkanoyl, C 1 -C 4 alkoxycarbonyl, mono-C 1 -C 4 alkylamino, di-C 1 -C 4 alkylamino, mono-C 1 -C 4 alkylcarboxamido, and di-C 1 -C 4 alkylcarboxamido,

—C 0 -C 4 alkylNR 10 (C═O)NR 11 R 12 , and

substituted —C 0 -C 4 alkylNR 10 (C═O)NR 11 R 12 chosen from mono-, di-, and tri-substituted —C 0 -C 4 alkylNR 10 (C═O)NR 11 R 12 , wherein the substituents are independently chosen from halo, hydroxy, amino, oxo, —COOH, —CONH 2 , C 1 -C 6 alkoxy, C 2 -C 4 alkanoyl, C 1 -C 4 alkoxycarbonyl, mono-C 1 -C 4 alkylamino, di-C 1 -C 4 alkylamino, mono-C 1 -C 4 alkylcarboxamido, and di-C 1 -C 4 alkylcarboxamido, and

pyridyl substituted with a group chosen from

—C 1 -C 4 alkylene(C═O)OR 10 ,

—C 0 -C 4 alkylene(C═O)NR 10 R 11 ,

—C 1 -C 4 alkylNR 10 (SO 2 )R 11 ,

—C 0 -C 4 alkylNR 10 (C═O)R 11 ,

substituted —C 0 -C 4 alkylNR 10 (C═O)R 11 chosen from mono-, di-, and tri-substituted —C 0 -C 4 alkylNR 10 (C═O)R 11 , wherein the substituents are independently chosen from halo, hydroxy, amino, oxo, —COOH, —CONH 2 , C 1 -C 6 alkoxy, C 2 -C 4 alkanoyl, C 1 -C 4 alkoxycarbonyl, mono-C 1 -C 4 alkylamino, di-C 1 -C 4 alkylamino, mono-C 1 -C 4 alkylcarboxamido, and di-C 1 -C 4 alkylcarboxamido,

—C 0 -C 4 alkyl(SO 2 )R 10 ,

—C 0 -C 4 alkylNR 10 (C═O)NR 11 R 12 and

wherein R 1 is optionally further mono-, di-, or tri-substituted with substituents independently chosen from hydroxy, cyano, halo, C 1 -C 2 alkyl, and C 1 -C 2 alkoxy, and

wherein R 10 , R 11 , and R 12 are independently chosen from hydrogen, hydroxy, C 1 -C 6 alkyl, C 1 -C 6 alkoxy, C 3 -C 10 cycloalkyl, pyrrolidinyl, morpholinyl, thiomorpholinyl, piperazinyl, piperidinyl, and [1,4]diazepanyl.

15 . At least one chemical entity of claim 4 , wherein

R 1 is chosen from

phenyl substituted with -L-G, where

L is chosen from

C 1 -C 2 alkylene,

C 0 -C 2 alkylene-O—,

—(C═O)—,

—(C 1 -C 2 alkyl)(C═O)—, and

substituted —(C 1 -C 2 alkyl)(C═O)— chosen from mono-, di-, and tri-substituted —(C 1 -C 2 alkyl)(C═O)— wherein the substituents are independently chosen from halo, hydroxy, amino, oxo, —COOH, —CONH 2 , C 1 -C 4 alkyl, C 2 -C 4 alkenyl, C 2 -C 4 alkynyl, C 1 -C 6 alkoxy, C 2 -C 4 alkanoyl, C 1 -C 4 alkylthio, C 1 -C 2 haloalkyl, C 1 -C 2 haloalkoxy, C 1 -C 4 alkoxycarbonyl, mono-C 1 -C 4 alkylamino, di-C 1 -C 4 alkylamino, mono-C 1 -C 4 alkylcarboxamido, di-C 1 -C 4 alkylcarboxamido, and phenyl, and

G is chosen from

heterocycloalkyl,

C 3 -C 7 cycloalkyl,

aryl,

heteroaryl, and

pyridyl substituted with -L-G, where

L is chosen from

C 1 -C 2 alkylene,

C 0 -C 2 alkylene-O—,

—(C═O)—,

—(C 1 -C 2 alkyl)(C═O)—, and

G is chosen from

heterocycloalkyl,

C 3 -C 7 cycloalkyl,

aryl,

heteroaryl, and

16 . At least one chemical entity of claim 15 , wherein

R 1 is chosen from

phenyl substituted with -L-G, where

L is chosen from

C 1 -C 2 alkylene,

substituted C 1 -C 2 alkylene chosen from mono-, di-, and tri-substituted C 1 -C 2 alkylene wherein the substituents are independently chosen from halo, hydroxy, cyano, amino, oxo, —COOH, —CONH 2 , C 1 -C 4 alkyl, C 1 -C 6 alkoxy, C 2 -C 4 alkanoyl, C 1 -C 2 haloalkyl, C 1 -C 2 haloalkoxy, C 1 -C 4 alkoxycarbonyl, mono-C 1 -C 4 alkyl amino, di-C 1 -C 4 alkyl amino, mono-C 1 -C 4 alkylcarboxamido, and di-C 1 -C 4 alkylcarboxamido,

C 0 -C 2 alkylene-O—,

substituted C 0 -C 2 alkylene-O— chosen from mono-, di-, and tri-substituted C 0 -C 2 alkylene-O— wherein the substituents are independently chosen from halo, hydroxy, cyano, amino, oxo, —COOH, —CONH 2 , C 1 -C 4 alkyl, C 1 -C 6 alkoxy, C 2 -C 4 alkanoyl, C 1 -C 2 haloalkyl, C 1 -C 2 haloalkoxy, C 1 -C 4 alkoxycarbonyl, mono-C 1 -C 4 alkylamino, di-C 1 -C 4 alkylamino, mono-C 1 -C 4 alkylcarboxamido, and di-C 1 -C 4 alkylcarboxamido,

—(C═O)—,

—(C 1 -C 2 alkyl)(C═O)—, and

substituted —(C 1 -C 2 alkyl)(C═O)— chosen from mono-, di-, and tri-substituted —(C 1 -C 2 alkyl)(C═O)— wherein the substituents are independently chosen from halo, hydroxy, cyano, amino, oxo, —COOH, —CONH 2 , C 1 -C 4 alkyl, C 1 -C 6 alkoxy, C 2 -C 4 alkanoyl, C 1 -C 2 haloalkyl, C 1 -C 2 haloalkoxy, C 1 -C 4 alkoxycarbonyl, mono-C 1 -C 4 alkylamino, di-C 1 -C 4 alkylamino, mono-C 1 -C 4 alkylcarboxamido, and di-C 1 -C 4 alkylcarboxamido, and

G is chosen from

pyrrolidinyl,

substituted pyrrolidinyl chosen from mono-, di-, and tri-substituted pyrrolidinyl wherein the substituents are independently chosen from halo, hydroxy, cyano, amino, oxo, —COOH, —CONH 2 , C 1 -C 4 alkyl, C 1 -C 6 alkoxy, C 2 -C 4 alkanoyl, C 1 -C 2 haloalkyl, C 1 -C 2 haloalkoxy, C 1 -C 4 alkokycarbonyl, mono-C 1 -C 4 alkylamino, di-C 1 -C 4 alkylamino, mono-C 1 -C 4 alkylcarboxamido, and di-C 1 -C 4 alkylcarboxamido,

morpholinyl,

substituted morpholinyl chosen from mono-, di-, and tri-substituted morpholinyl wherein the substituents are independently chosen from halo, hydroxy, cyano, amino, oxo, —COOH, —CONH 2 , C 1 -C 4 alkyl, C 1 -C 6 alkoxy, C 2 -C 4 alkanoyl, C 1 -C 2 haloalkyl, C 1 -C 2 haloalkoxy, C 1 -C 4 alkoxycarbonyl, mono-C 1 -C 4 alkylamino, di-C 1 -C 4 alkylamino, mono-C 1 -C 4 alkylcarboxamido, and di-C 1 -C 4 alkylcarboxamido,

thiomorpholinyl,

substituted thiomorpholinyl chosen from mono-, di-, and tri-substituted thiomorpholinyl wherein the substituents are independently chosen from halo, hydroxy, cyano, amino, oxo, —COOH, —CONH 2 , C 1 -C 4 alkyl, C 1 -C 6 alkoxy, C 2 -C 4 alkanoyl, C 1 -C 2 haloalkyl, C 1 -C 2 haloalkoxy, C 1 -C 4 alkoxycarbonyl, mono-C 1 -C 4 alkylamino, di-C 1 -C 4 alkylamino, mono-C 1 -C 4 alkylcarboxamido, and di-C 1 -C 4 alkylcarboxamido,

piperazinyl,

substituted piperazinyl chosen from mono-, di-, and tri-substituted piperazinyl wherein the substituents are independently chosen from halo, hydroxy, cyano, amino, oxo, —COOH, —CONH 2 , C 1 -C 4 alkyl, C 1 -C 6 alkoxy, C 2 -C 4 alkanoyl, C 1 -C 2 haloalkyl, C 1 -C 2 haloalkoxy, C 1 -C 4 alkoxycarbonyl, mono-C 1 -C 4 alkylamino, di-C 1 -C 4 alkylamino, mono-C 1 -C 4 alkylcarboxamido, and di-C 1 -C 4 alkylcarboxamido,

piperidinyl,

substituted piperidinyl chosen from mono-, di-, and tri-substituted piperidinyl wherein the substituents are independently chosen from halo, hydroxy, cyano, amino, oxo, —COOH, —CONH 2 , C 1 -C 4 alkyl, C 1 -C 6 alkoxy, C 2 -C 4 alkanoyl, C 1 -C 2 haloalkyl, C 1 -C 2 haloalkoxy, C 1 -C 4 alkoxycarbonyl, mono-C 1 -C 4 alkylamino, di-C 1 -C 4 alkylamino, mono-C 1 -C 4 alkylcarboxamido, and di-C 1 -C 4 alkylcarboxamido,

[1,4]diazepanyl,

substituted [1,4]diazepanyl chosen from mono-, di-, and tri-substituted [1,4]diazepanyl wherein the substituents are independently chosen from halo, hydroxy, cyano, amino, oxo, —COOH, —CONH 2 , C 1 -C 4 alkyl, C 1 -C 6 alkoxy, C 2 -C 4 alkanoyl, C 1 -C 2 haloalkyl, C 1 -C 2 haloalkoxy, C 1 -C 4 alkoxycarbonyl, mono-C 1 -C 4 alkylamino, di-C 1 -C 4 alkylamino, mono-C 1 -C 4 alkylcarboxamido, and di-C 1 -C 4 alkylcarboxamido,

octahydro-pyrido[1,2-a]pyrazin-2-yl,

substituted octahydro-pyrido[1,2-a]pyrazin-2-yl chosen from mono-, di-, and tri-substituted octahydro-pyrido[1,2-a]pyrazin-2-yl wherein the substituents are independently chosen from halo, hydroxy, cyano, amino, oxo, —COOH, —CONH 2 , C 1 -C 4 alkyl, C 1 -C 6 alkoxy, C 2 -C 4 alkanoyl, C 1 -C 2 haloalkyl, C 1 -C 2 haloalkoxy, C 1 -C 4 alkoxycarbonyl, mono-C 1 -C 4 alkylamino, di-C 1 -C 4 alkylamino, mono-C 1 -C 4 alkylcarboxamido, and di-C 1 -C 4 alkylcarboxamido,

phenyl,

substituted phenyl chosen from mono-, di-, and tri-substituted phenyl wherein the substituents are independently chosen from halo, hydroxy, cyano, amino, oxo, —COOH, —CONH 2 , C 1 -C 4 alkyl, C 1 -C 6 alkoxy, C 2 -C 4 alkanoyl, C 1 -C 2 haloalkyl, C 1 -C 2 haloalkoxy, C 1 -C 4 alkoxycarbonyl, mono-C 1 -C 4 alkylamino, di-C 1 -C 4 alkylamino, mono-C 1 -C 4 alkylcarboxamido, and di-C 1 -C 4 alkylcarboxamido,

imidazolyl,

substituted imidazolyl chosen from mono-, di-, and tri-substituted imidazolyl wherein the substituents are independently chosen from halo, hydroxy, cyano, amino, oxo, —COOH, —CONH 2 , C 1 -C 4 alkyl, C 1 -C 6 alkoxy, C 2 -C 4 alkanoyl, C 1 -C 2 haloalkyl, C 1 -C 2 haloalkoxy, C 1 -C 4 alkoxycarbonyl, mono-C 1 -C 4 alkylamino, di-C 1 -C 4 alkylamino, mono-C 1 -C 4 alkylcarboxamido, and di-C 1 -C 4 alkylcarboxamido,

5,6-dihydro-8H-[1,2,4]triazolo[4,3-a]pyrazine, and

substituted 5,6-dihydro-8H-[1,2,4]triazolo[4,3-a]pyrazine chosen from mono-, di-, and tri-substituted 5,6-dihydro-8H-[1,2,4]triazolo[4,3-a]pyrazine wherein the substituents are independently chosen from halo, hydroxy, cyano, amino, oxo, —COOH, —CONH 2 , C 1 -C 4 alkyl, C 1 -C 6 alkoxy, C 2 -C 4 alkanoyl, C 1 -C 2 haloalkyl, C 1 -C 2 haloalkoxy, C 1 -C 4 alkoxycarbonyl, mono-C 1 -C 4 alkylamino, di-C 1 -C 4 alkylamino, mono-C 1 -C 4 alkylcarboxamido, and di-C 1 -C 4 alkylcarboxamido, and

pyridyl substituted with -L-G, where

L is chosen from

C 1 -C 2 alkylene,

substituted C 1 -C 2 alkylene chosen from mono-, di-, and tri-substituted C 1 -C 2 alkylene wherein the substituents are independently chosen from halo, hydroxy, cyano, amino, oxo, —COOH, —CONH 2 , C 1 -C 4 alkyl, C 1 -C 6 alkoxy, C 2 -C 4 alkanoyl, C 1 -C 2 haloalkyl, C 1 -C 2 haloalkoxy, C 1 -C 4 alkoxycarbonyl, mono-C 1 -C 4 alkylamino, di-C 1 -C 4 alkylamino, mono-C 1 -C 4 alkylcarboxamido, and di-C 1 -C 4 alkylcarboxamido,

C 0 -C 2 alkylene-O—,

—(C═O)—,

—(C 1 -C 2 alkyl)(C═O)—, and

G is chosen from

pyrrolidinyl,

substituted pyrrolidinyl chosen from mono-, di-, and tri-substituted pyrrolidinyl wherein the substituents are independently chosen from halo, hydroxy, cyano, amino, oxo, —COOH, —CONH 2 , C 1 -C 4 alkyl, C 1 -C 6 alkoxy, C 2 -C 4 alkanoyl, C 1 -C 2 haloalkyl, C 1 -C 2 haloalkoxy, C 1 -C 4 alkoxycarbonyl, mono-C 1 -C 4 alkylamino, di-C 1 -C 4 alkylamino, mono-C 1 -C 4 alkylcarboxamido, and di-C 1 -C 4 alkylcarboxamido,

morpholinyl,

thiomorpholinyl,

piperazinyl,

piperidinyl,

[1,4]diazepanyl,

octahydro-pyrido[1,2-a]pyrazin-2-yl,

substituted octahydro-pyrido[1,2-a]pyrazin-2-yl chosen from mono-, di-, and tri-substituted octahydro-pyrido[1,2-a]pyrazin-2-yl wherein the substituents are independently chosen from halo, hydroxy, cyano, amino, oxo, —COOH, —CONH 2 , C 1 -C 4 alkyl, C 1 -C 6 alkoxy, C 2 -C 4 alkanoyl, C 1 -C 2 haloalkyl, C 1 -C 2 haloalkoxy, C 1 -C 4 alkoxycarbonyl, mono-C 1 -C 4 alkylamino, di-C 1 -C 4 alkylamino, mono-C 1 -C 4 alkylcarboxamido, and di-C 1 -C 4 alkylcarboxamido,

phenyl,

imidazolyl,

5,6-dihydro-8H-[1,2,4]triazolo[4,3-a]pyrazine, and

17 . At least one chemical entity of claim 16 , wherein

R 1 is chosen from

phenyl substituted with -L-G, where

L is chosen from

C 1 -C 2 alkylene,

substituted C 1 -C 2 alkylene chosen from mono-, di-, and tri-substituted C 1 -C 2 alkylene wherein the substituents are independently chosen from halo, hydroxy, oxo, —COOH, —CONH 2 , C 1 -C 4 alkyl, C 1 -C 6 alkoxy, C 2 -C 4 alkanoyl, C 1 -C 4 alkoxycarbonyl, mono-C 1 -C 4 alkylamino, di-C 1 -C 4 alkylamino, mono-C 1 -C 4 alkylcarboxamido, and di-C 1 -C 4 alkylcarboxamido,

C 0 -C 2 alkylene-O—,

substituted C 0 -C 2 alkylene-O— chosen from mono-, di-, and tri-substituted C 0 -C 2 alkylene-O— wherein the substituents are independently chosen from halo, hydroxy, oxo, —COOH, —CONH 2 , C 1 -C 4 alkyl, C 1 -C 6 alkoxy, C 2 -C 4 alkanoyl, C 1 -C 4 alkoxycarbonyl, mono-C 1 -C 4 alkylamino, di-C 1 -C 4 alkylamino, mono-C 1 -C 4 alkylcarboxamido, and di-C 1 -C 4 alkylcarboxamido,

—(C═O)—,

—(C 1 -C 2 alkyl)(C═O)—, and

substituted —(C 1 -C 2 alkyl)(C═O)— chosen from mono-, di-, and tri-substituted —(C 1 -C 2 alkyl)(C═O)— wherein the substituents are independently chosen from halo, hydroxy, oxo, —COOH, —CONH 2 , C 1 -C 4 alkyl, C 1 -C 6 alkoxy, C 2 -C 4 alkanoyl, C 1 -C 4 alkoxycarbonyl, mono-C 1 -C 4 alkylamino, di-C 1 -C 4 alkylamino, mono-C 1 -C 4 alkylcarboxamido, and di-C 1 -C 4 alkylcarboxamido, and

G is chosen from

pyrrolidinyl,

morpholinyl,

thiomorpholinyl,

piperazinyl,

piperidinyl,

[1,4]diazepanyl,

octahydro-pyrido[1,2-a]pyrazin-2-yl,

substituted octahydro-pyrido[1,2-a]pyrazin-2-yl chosen from mono-, di-, and tri-substituted octahydro-pyrido[1,2-a]pyrazin-2-yl wherein the substituents are independently chosen from halo, hydroxy, oxo, —COOH, —CONH 2 , C 1 -C 4 alkyl, C 1 -C 6 alkoxy, C 2 -C 4 alkanoyl, C 1 -C 4 alkoxycarbonyl, mono-C 1 -C 4 alkylamino, di-C 1 -C 4 alkylamino, mono-C 1 -C 4 alkylcarboxamido, and di-C 1 -C 4 alkylcarboxamido,

phenyl,

imidazolyl,

5,6-dihydro-8H-[1,2,4]triazolo[4,3-a]pyrazine, and

substituted 5,6-dihydro-8H-[1,2,4]triazolo[4,3-a]pyrazine chosen from mono-, di- and tri-substituted 5,6-dihydro-8H-[1,2,4]triazolo[4,3-a]pyrazine, wherein the substituents are independently chosen from halo, hydroxy, oxo, —COOH, —CONH 2 , C 1 -C 4 alkyl, C 1 -C 6 alkoxy, C 2 -C 4 alkanoyl, C 1 -C 4 alkoxycarbonyl, mono-C 1 -C 4 alkylamino, di-C 1 -C 4 alkylamino, mono-C 1 -C 4 alkylcarboxamido, and di-C 1 -C 4 alkylcarboxamido, and

pyridyl substituted with -L-G, where

L is chosen from

C 1 -C 2 alkylene,

C 0 -C 2 alkylene-O—,

—(C═O)—,

—(C 1 -C 2 alkyl)(C═O)—, and

G is chosen from

pyrrolidinyl,

morpholinyl,

thiomorpholinyl,

piperazinyl,

piperidinyl,

[1,4]diazepanyl,

octahydro-pyrido[1,2-a]pyrazin-2-yl,

substituted octahydro-pyrido[1,2-a]pyrazin-2-yl chosen from mono-, di-, and tri-substituted octahydro-pyrido[1,2-a]pyrazin-2-yl wherein the substituents are independently chosen from halo, hydroxy, oxo, —COOH, —CONH 2 , C 1 -C 4 alkyl, C 1 -C 6 alkoxy, C 2 -C 4 alkanoyl, C 1 -C 4 alkoxycarbonyl, mono-C 1 -C 4 alkylamino, di-C 1 -C 4 alkylamino, mono-C 1 -C 4 alkylcarboxamido, and di-C 1 -C 4 alkylcarboxamido,

phenyl,

imidazolyl,

5,6-dihydro-8H-[1,2,4]triazolo[4,3-a]pyrazine, and

substituted 5,6-dihydro-8H-[1,2,4]triazolo[4,3-a]pyrazine chosen from mono-, di- and tri-substituted 5,6-dihydro-8H-[1,2,4]triazolo[4,3-a]pyrazine, wherein the substituents are independently chosen from halo, hydroxy, oxo, —COOH, —CONH 2 , C 1 -C 4 alkyl, C 1 -C 6 alkoxy, C 2 -C 4 alkanoyl, C 1 -C 4 alkoxycarbonyl, mono-C 1 -C 4 alkylamino, di-C 1 -C 4 alkylamino, mono-C 1 -C 4 alkylcarboxamido, and di-C 1 -C 4 alkylcarboxamido,

wherein R 1 is optionally further mono-, di-, or tri-substituted with substituents independently chosen from hydroxy, cyano, halo, C 1 -C 2 alkyl, and C 1 -C 2 alkoxy.

18 . At least one chemical entity of claim 17 , wherein

L is chosen from

phenyl substituted with a group chosen from —CH 2 —, —(C═O)—, and —(CH 2 )(C═O)—, and

pyridyl substituted with a group chosen from —CH 2 —, —(C═O)—, and —(CH 2 )(C═O)—, and

G is chosen from

pyrrolidinyl,

substituted pyrrolidinyl chosen from mono-, di- and tri-substituted pyrrolidinyl, wherein the substituents are independently chosen from halo, hydroxy, oxo, —COOH, —CONH 2 , C 1 -C 2 alkyl, C 1 -C 2 alkoxy, C 2 alkanoyl, C 1 -C 2 alkoxycarbonyl, mono-C 1 -C 2 alkylamino, di-C 1 -C 2 alkylamino, mono-C 1 -C 2 alkylcarboxamido, and di-C 1 -C 2 alkylcarboxamido,

morpholinyl,

substituted morpholinyl chosen from mono-, di- and tri-substituted morpholinyl, wherein the substituents are independently chosen from halo, hydroxy, oxo, —COOH, —CONH 2 , C 1 -C 2 alkyl, C 1 -C 2 alkoxy, C 2 alkanoyl, C 1 -C 2 alkoxycarbonyl, mono-C 1 -C 2 alkylamino, di-C 1 -C 2 alkylamino, mono-C 1 -C 2 alkylcarboxamido, and di-C 1 -C 2 alkylcarboxamido,

thiomorpholinyl,

substituted thiomorpholinyl chosen from mono-, di- and tri-substituted thiomorpholinyl, wherein the substituents are independently chosen from halo, hydroxy, oxo, —COOH, —CONH 2 , C 1 -C 2 alkyl, C 1 -C 2 alkoxy, C 2 alkanoyl, C 1 -C 2 alkoxycarbonyl, mono-C 1 -C 2 alkylamino, di-C 1 -C 2 alkylamino, mono-C 1 -C 2 alkylcarboxamido, and di-C 1 -C 2 alkylcarboxamido,

piperazinyl,

substituted piperazinyl chosen from mono-, di- and tri-substituted piperazinyl, wherein the substituents are independently chosen from halo, hydroxy, oxo, —COOH, —CONH 2 , C 1 -C 2 alkyl, C 1 -C 2 alkoxy, C 2 alkanoyl, C 1 -C 2 alkoxycarbonyl, mono-C 1 -C 2 alkylamino, di-C 1 -C 2 alkylamino, mono-C 1 -C 2 alkylcarboxamido, and di-C 1 -C 2 alkylcarboxamido,

piperidinyl,

substituted piperidinyl chosen from mono-, di- and tri-substituted piperidinyl, wherein the substituents are independently chosen from halo, hydroxy, oxo, —COOH, —CONH 2 , C 1 -C 2 alkyl, C 1 -C 2 alkoxy, C 2 alkanoyl, C 1 -C 2 alkoxycarbonyl, mono-C 1 -C 2 alkylamino, di-C 1 -C 2 alkylamino, mono-C 1 -C 2 alkylcarboxamido, and di-C 1 -C 2 alkylcarboxamido,

[1,4]diazepanyl,

substituted [1,4]diazepanyl chosen from mono-, di- and tri-substituted [1,4]diazepanyl, wherein the substituents are independently chosen from halo, hydroxy, oxo, —COOH, —CONH 2 , C 1 -C 2 alkyl, C 1 -C 2 alkoxy, C 2 alkanoyl, C 1 -C 2 alkoxycarbonyl, mono-C 1 -C 2 alkylamino, di-C 1 -C 2 alkylamino, mono-C 1 -C 2 alkylcarboxamido, and di-C 1 -C 2 alkylcarboxamido,

octahydro-pyrido[1,2-a]pyrazin-2-yl, and

substituted octahydro-pyrido[1,2-a]pyrazin-2-yl chosen from mono-, di-, and tri-substituted octahydro-pyrido[1,2-a]pyrazin-2-yl wherein the substituents are independently chosen from halo, hydroxy, oxo, —COOH, —CONH 2 , C 1 -C 2 alkyl, C 1 -C 2 alkoxy, C 2 alkanoyl, C 1 -C 2 alkoxycarbonyl, mono-C 1 -C 2 alkylamino, di-C 1 -C 2 alkylamino, mono-C 1 -C 2 alkylcarboxamido, and di-C 1 -C 2 alkylcarboxamido,

wherein R 1 is optionally further mono-, di-, or tri-substituted with substituents independently chosen from hydroxy, halo, C 1 -C 2 alkyl, and C 1 -C 2 alkoxy.

19 . At least one chemical entity of claim 1 , which is chosen from compounds of Formula 2

wherein

B is chosen from 0 and 1;

R is chosen from

hydroxy,

—CHO,

—COOH,

—CONH 2 ,

—CONHOH,

C 2 -C 6 alkenyl,

C 2 -C 6 alkynyl,

C 1 -C 6 alkyl,

C 1 -C 6 alkoxy,

heterocycloalkyl,

aryl,

heteroaryl,

—C 1 -C 6 alkylNR 10 (SO 2 )R 11 ,

substituted —C 1 -C 6 alkylNR 10 (SO 2 )R 11 , chosen from mono-, di-, and tri-substituted —C 1 -C 6 alkylNR 10 (SO 2 )R 11 wherein the substituents are independently chosen from halo, hydroxy, amino, oxo, —COOH, —CONH 2 , C 1 -C 4 alkyl, C 2 -C 4 alkenyl, C 2 -C 4 alkynyl, C 1 -C 6 alkoxy, C 2 -C 4 alkanoyl, C 1 -C 4 alkylthio, C 1 -C 2 haloalkyl, C 1 -C 2 haloalkoxy, C 1 -C 4 alkoxycarbonyl, mono-C 1 -C 4 alkylamino, di-C 1 -C 4 alkylamino, mono-C 1 -C 4 alkylcarboxamido, di-C 1 -C 4 alkylcarboxamido, and phenyl,

—C 0 -C 6 alkylNR 10 (C═O)R 11 ,

—C 0 -C 6 alkyl(SO 2 )R 10 ,

—C 0 -C 6 alkylNR 10 (C═O)NR 11 R 12 ,

-L-G, where

L is chosen from

C 1 -C 2 alkylene,

C 0 -C 2 alkylene-O—,

—(C═O)—,

—(C 1 -C 2 alkylene)(C═O)—, and

G is chosen from

heterocycloalkyl,

C 3 -C 7 cycloalkyl,

aryl,

heteroaryl, and

wherein R 10 , R 11 , and R 12 are independently chosen from hydrogen, hydroxy, C 1 -C 6 alkyl, C 1 -C 6 alkoxy, C 3 -C 10 cycloalkyl, and heterocycloalkyl, and

wherein R A is optional and when present, can be present up to four times, and is independently chosen from hydroxy, nitro, cyano, amino, —SO 2 NH 2 , halo, C 1 -C 6 alkyl, C 2 -C 6 alkanoyl, C 1 -C 4 haloalkyl, C 1 -C 4 haloalkoxy, C 1 -C 6 alkylthio, C 3 -C 7 cycloalkyl, (C 1 -C 6 alkoxy)C 0 -C 6 alkyl, (mono-C 1 -C 6 alkylamino)C 0 -C 6 alkyl, (di-C 1 -C 6 alkylamino)C 0 -C 6 alkyl, and C 1 -C 6 alkoxycarbonyl.

20 . At least one chemical entity of claim 19 , which is chosen from compounds of Formula 3

21 . At least one chemical entity of claim 1 , wherein

R 2 is chosen from

(phenyl)C 0 -C 2 alkyl,

substituted (phenyl)C 0 -C 2 alkyl chosen from mono-, di-, and tri-substituted (phenyl)C 0 -C 2 alkyl wherein the substituents are independently chosen from hydroxy, nitro, cyano, amino, halo, —SO 2 NH 2 , oxo, —COOH, C 1 -C 6 alkyl, C 2 -C 6 alkenyl, C 2 -C 6 alkynyl, C 1 -C 6 alkoxy, C 2 -C 6 alkanoyl, C 1 -C 6 hydroxyalkyl, C 1 -C 3 haloalkyl, C 1 -C 3 haloalkoxy, C 1 -C 6 alkylthio, (C 1 -C 6 alkoxy)C 1 -C 6 alkoxy, aminoC 1 -C 6 alkyl, mono-C 1 -C 6 alkylamino, di-C 1 -C 6 alkylamino, mono-C 1 -C 6 alkylcarboxamido, di-C 1 -C 6 alkylcarboxamido, C 1 -C 6 alkoxycarbonyl, phenyl, heteroaryl, and —(C═O)R 13 wherein R 13 is chosen from C 1 -C 6 alkyl, (C 3 -C 7 cycloalkyl)C 0 -C 2 alkyl, C 1 -C 3 haloalkyl, heterocycloalkyl, phenyl, and heteroaryl,

(phenoxy)C 0 -C 2 alkyl,

substituted (phenoxy)C 0 -C 2 alkyl chosen from mono-, di-, and tri-substituted (phenoxy)C 0 -C 2 alkyl wherein the substituents are independently chosen from hydroxy, nitro, cyano, amino, halo, —SO 2 NH 2 , oxo, —COOH, C 1 -C 6 alkyl, C 2 -C 6 alkenyl, C 2 -C 6 alkynyl, C 1 -C 6 alkoxy, C 2 -C 6 alkanoyl, C 1 -C 6 hydroxyalkyl, C 1 -C 3 haloalkyl, C 1 -C 3 haloalkoxy, C 1 -C 6 alkylthio, (C 1 -C 6 alkoxy)C 1 -C 6 alkoxy, aminoC 1 -C 6 alkyl, mono-C 1 -C 6 alkylamino, di-C 1 -C 6 alkylamino, mono-C 1 -C 6 alkylcarboxamido, di-C 1 -C 6 alkylcarboxamido, C 1 -C 6 alkoxycarbonyl, phenyl, heteroaryl, and —(C═O)R 13 wherein R 13 is chosen from C 1 -C 6 alkyl, (C 3 -C 7 cycloalkyl)C 0 -C 2 alkyl, C 1 -C 3 haloalkyl, heterocycloalkyl, phenyl, and heteroaryl,

(pyridyl)C 0 -C 2 alkyl, and

substituted (pyridyl)C 0 -C 2 alkyl chosen from mono-, di-, and tri-substituted (pyridyl)C 0 -C 2 alkyl wherein the substituents are independently chosen from hydroxy, nitro, cyano, amino, halo, —SO 2 NH 2 , oxo, —COOH, C 1 -C 6 alkyl, C 2 -C 6 alkenyl, C 2 -C 6 alkynyl, C 1 -C 6 alkoxy, C 2 -C 6 alkanoyl, C 1 -C 6 hydroxyalkyl, C 1 -C 3 haloalkyl, C 1 -C 3 haloalkoxy, C 1 -C 6 alkylthio, (C 1 -C 6 alkoxy)C 1 -C 6 alkoxy, aminoC 1 -C 6 alkyl, mono-C 1 -C 6 alkylamino, di-C 1 -C 6 alkylamino, mono-C 1 -C 6 alkylcarboxamido, di-C 1 -C 6 alkylcarboxamido, C 1 -C 6 alkoxycarbonyl, phenyl, heteroaryl, and —(C═O)R 13 wherein R 13 is chosen from C 1 -C 6 alkyl, (C 3 -C 7 cycloalkyl)C 0 -C 2 alkyl, C 1 -C 3 haloalkyl, heterocycloalkyl, phenyl, and heteroaryl.

22 . At least one chemical entity of claim 21 , wherein

R 2 is chosen from

(phenyl)C 0 -C 2 alkyl,

substituted (phenyl)C 0 -C 2 alkyl chosen from mono-, di-, and tri-substituted (phenyl)C 0 -C 2 alkyl wherein the substituents are independently chosen from hydroxy, cyano, amino, halo, —SO 2 NH 2 , oxo, —COOH, C 1 -C 4 alkyl, C 1 -C 4 alkoxy, C 2 -C 4 alkanoyl, C 1 -C 4 hydroxyalkyl, C 1 -C 2 haloalkyl, C 1 -C 2 haloalkoxy, mono-C 1 -C 6 alkylamino, di-C 1 -C 6 alkylamino, mono-C 1 -C 6 alkylcarboxamido, di-C 1 -C 6 alkylcarboxamido, C 1 -C 4 alkoxycarbonyl, phenyl, and imidazolyl,

(phenoxy)C 0 -C 2 alkyl,

substituted (phenoxy)C 0 -C 2 alkyl chosen from mono-, di-, and tri-substituted (phenoxy)C 0 -C 2 alkyl wherein the substituents are independently chosen from hydroxy, cyano, amino, halo, —SO 2 NH 2 , oxo, —COOH, C 1 -C 4 alkyl, C 1 -C 4 alkoxy, C 2 -C 4 alkanoyl, C 1 -C 4 hydroxyalkyl, C 1 -C 2 haloalkyl, C 1 -C 2 haloalkoxy, mono-C 1 -C 6 alkylamino, di-C 1 -C 6 alkylamino, mono-C 1 -C 6 alkylcarboxamido, di-C 1 -C 6 alkylcarboxamido, C 1 -C 4 alkoxycarbonyl, phenyl, and imidazolyl,

(pyridyl)C 0 -C 2 alkyl, and

substituted (pyridyl)C 0 -C 2 alkyl chosen from mono-, di-, and tri-substituted (pyridyl)C 0 -C 2 alkyl wherein the substituents are independently chosen from hydroxy, cyano, amino, halo, —SO 2 NH 2 , oxo, —COOH, C 1 -C 4 alkyl, C 1 -C 4 alkoxy, C 2 -C 4 alkanoyl, C 1 -C 4 hydroxyalkyl, C 1 -C 2 haloalkyl, C 1 -C 2 haloalkoxy, mono-C 1 -C 6 alkylamino, di-C 1 -C 6 alkylamino, mono-C 1 -C 6 alkylcarboxamido, di-C 1 -C 6 alkylcarboxamido, C 1 -C 4 alkoxycarbonyl, phenyl, and imidazolyl.

23 . At least one chemical entity of claim 1 , wherein

Z 1 is chosen from

and

R 4 is chosen from hydrogen, C 1 -C 6 alkyl, and C 3 -C 7 cycloalkyl.

24 . At least one chemical entity of claim 23 , wherein R 4 is chosen from hydrogen and methyl.

25 . At least one chemical entity of claim 1 , which is chosen from compounds of Formula 4

26 . At least one chemical entity of claim 25 , which is chosen from compounds of Formula 5

wherein

R is chosen from

hydroxy,

—CHO,

—COOH,

—CONH 2 ,

—CONHOH,

C 2 -C 6 alkenyl,

C 2 -C 6 alkynyl,

C 1 -C 6 alkyl,

C 1 -C 6 alkoxy,

heterocycloalkyl,

aryl,

heteroaryl,

—C 1 -C 6 alkylNR 10 (SO 2 )R 11 ,

—C 0 -C 6 alkylNR 10 (C═O)R 11 ,

—C 0 -C 6 alkyl(SO 2 )R 10 ,

—C 0 -C 6 alkylNR 10 (C═O)NR 11 R 12 ,

-L-G, where

L is

C 1 -C 2 alkyl,

substituted C 1 -C 2 alkyl chosen from mono-, di-, and tri-substituted C 1 -C 2 alkyl wherein the substituents are independently chosen from halo, hydroxy, amino, oxo, —COOH, —CONH 2 , C 1 -C 4 alkyl, C 2 -C 4 alkenyl, C 2 -C 4 alkynyl, C 1 -C 6 alkoxy, C 2 -C 4 alkanoyl, C 1 -C 4 alkylthio, C 1 -C 2 haloalkyl, C 1 -C 2 haloalkoxy, C 1 -C 4 alkoxycarbonyl, mono-C 1 -C 4 alkylamino, di-C 1 -C 4 alkylamino, mono-C 1 -C 4 alkylcarboxamido, di-C 1 -C 4 alkylcarboxamido, and phenyl,

C 0 -C 2 alkylene-O—,

—(C═O)—,

—(C 1 -C 2 alkyl)(C═O)—, and

G is

heterocycloalkyl,

C 3 -C 7 cycloalkyl,

aryl,

heteroaryl, and

wherein R 10 , R 11 , and R 12 are independently chosen from hydrogen, hydroxy, C 1 -C 6 alkyl, C 1 -C 6 alkoxy, C 3 -C 10 cycloalkyl, and heterocycloalkyl.

27 . At least one chemical entity of claim 1 , wherein R 3 is chosen from hydrogen and methyl.

28 . At least one chemical entity chosen from compounds of Formula 6

and pharmaceutically acceptable salts, solvates, crystal forms, chelates, non-covalent complexes, prodrugs, and mixtures thereof, wherein

B is chosen from 0 and 1;

R 1 is chosen from

phenyl,

phenyl substituted with a group chosen from

hydroxy,

—CHO,

—COOH,

—CONH 2 ,

—CONHOH,

C 2 -C 6 alkenyl,

C 2 -C 6 alkynyl,

C 1 -C 6 alkyl,

substituted C 1 -C 6 alkyl chosen from mono-, di-, and tri-substituted C 1 -C 6 alkyl wherein the substituents are independently chosen from halo, hydroxy, amino, oxo, —COOH, —CONH 2 , C 1 -C 4 alkyl, C 2 -C 4 alkenyl, C 2 -C 4 alkynyl, C 1 -C 6 alkoxy, C 2 -C 4 alkanoyl, C 1 -C 4 alkylthio, C 1 -C 2 haloalkyl, C 1 -C 2 haloalkoxy, C 1 -C 4 alkoxycarbonyl, mono-C 1 -C 6 alkylamino, di-C 1 -C 6 alkylamino, mono-C 1 -C 4 alkylcarboxamido, di-C 1 -C 4 alkylcarboxamido, and phenyl,

C 1 -C 6 alkoxy,

heterocycloalkyl,

aryl,

heteroaryl,

—C 1 -C 6 alkylNR 10 (SO 2 )R 11 ,

substituted —C 1 -C 6 alkylNR 10 (SO 2 )R 11 , chosen from mono-, di-, and tri-substituted —C 1 -C 6 alkylNR 10 (SO 2 )R 11 , wherein the substituents are independently chosen from halo, hydroxy, amino, oxo, —COOH, —CONH 2 , C 1 -C 4 alkyl, C 2 -C 4 alkenyl, C 2 -C 4 alkynyl, C 1 -C 6 alkoxy, C 2 -C 4 alkanoyl, C 1 -C 4 alkylthio, C 1 -C 2 haloalkyl, C 1 -C 2 haloalkoxy, C 1 -C 4 alkoxycarbonyl, mono-C 1 -C 4 alkylamino, di-C 1 -C 4 alkylamino, mono-C 1 -C 4 alkylcarboxamido, di-C 1 -C 4 alkylcarboxamido, and phenyl,

—C 0 -C 6 alkylNR 10 (C═O)R 11 ,

—C 0 -C 6 alkyl(SO 2 )R 10 ,

substituted —C 0 -C 6 alkyl(SO 2 )R 10 chosen from mono-, di-, and tri-substituted —C 0 -C 6 alkyl(SO 2 )R 10 wherein the substituents are independently chosen from halo, hydroxy, amino, oxo, —COOH, —CONH 2 , C 1 -C 4 alkyl, C 2 -C 4 alkenyl, C 2 -C 4 alkynyl, C 1 -C 6 alkoxy, C 2 -C 4 alkanoyl, C 1 -C 4 alkylthio, C 1 -C 2 haloalkyl, C 1 -C 2 haloalkoxy, C 1 -C 4 alkoxycarbonyl, mono-C 1 -C 4 alkylamino, di-C 1 -C 4 alkylamino; mono-C 1 -C 4 alkylcarboxamido, di-C 1 -C 4 alkylcarboxamido, and phenyl,

—C 0 -C 6 alkylNR 10 (C═O)NR 11 R 12 ,

substituted —C 0 -C 6 alkylNR 10 (C═O)NR 11 R 12 chosen from mono-, di-, and tri-substituted —C 0 -C 6 alkylNR 10 (C═O)NR 11 R 12 , wherein the substituents are independently chosen from halo, hydroxy, amino, oxo, —COOH, —CONH 2 , C 1 -C 4 alkyl, C 2 -C 4 alkenyl, C 2 -C 4 alkynyl, C 1 -C 6 alkoxy, C 2 -C 4 alkanoyl, C 1 -C 4 alkylthio, C 1 -C 2 haloalkyl, C 1 -C 2 haloalkoxy, C 1 -C 4 alkoxycarbonyl, mono-C 1 -C 4 alkyl amino, di-C 1 -C 4 alkyl amino, mono-C 1 -C 4 alkylcarboxamido, di-C 1 -C 4 alkylcarboxamido, and phenyl, and

-L-G, where

L is chosen from

C 1 -C 2 alkylene,

C 0 -C 2 alkylene-O—,

—(C═O)—,

—(C 1 -C 2 alkylene)(C═O)—, and

G is chosen from

heterocycloalkyl,

C 3 -C 7 cycloalkyl,

aryl,

heteroaryl, and

heteroaryl substituted with a group chosen from

hydroxy,

—CHO,

—COOH,

—CONH 2 ,

—CONHOH,

C 2 -C 6 alkenyl,

C 2 -C 6 alkynyl,

C 1 -C 6 alkyl,

substituted C 1 -C 6 alkyl chosen from mono-, di-, and tri-substituted C 1 -C 6 alkyl wherein the substituents are independently chosen from halo, hydroxy, amino, oxo, —COOH, —CONH 2 , C 1 -C 4 alkyl, C 2 -C 4 alkenyl, C 2 -C 4 alkynyl, C 1 -C 6 alkoxy, C 2 -C 4 alkanoyl, C 1 -C 4 alkylthio, C 1 -C 2 haloalkyl, C 1 -C 2 haloalkoxy, C 1 -C 4 alkoxycarbonyl, mono-C 1 -C 6 alkylamino, di-C 1 -C 6 alkylamino, mono-C 1 -C 4 alkylcarboxamido, di-C 1 -C 4 alkylcarboxamido, and phenyl,

C 1 -C 6 alkoxy,

heterocycloalkyl,

aryl,

heteroaryl,

—C 1 -C 6 alkylNR 10 (SO 2 )R 11 ,

substituted —C 1 -C 6 alkylNR 10 (SO 2 )R 11 chosen from mono-, di-, and tri-substituted —C 1 -C 6 alkylNR 10 (SO 2 )R 11 , wherein the substituents are independently chosen from halo, hydroxy, amino, oxo, —COOH, —CONH 2 , C 1 -C 4 alkyl, C 2 -C 4 alkenyl, C 2 -C 4 alkynyl, C 1 -C 6 alkoxy, C 2 -C 4 alkanoyl, C 1 -C 4 alkylthio, C 1 -C 2 haloalkyl, C 1 -C 2 haloalkoxy, C 1 -C 4 alkoxycarbonyl, mono-C 1 -C 4 alkylamino, di-C 1 -C 4 alkylamino, mono-C 1 -C 4 alkylcarboxamido, di-C 1 -C 4 alkylcarboxamido, and phenyl,

—C 0 -C 6 alkylNR 10 (C═O)R 11 ,

—C 0 -C 6 alkyl(SO 2 )R 10 ,

—C 0 -C 6 alkylNR 10 (C═O)NR 11 R 12 and

substituted —C 0 -C 6 alkylNR 10 (C═O)NR 11 R 12 chosen from mono-, di-, and tri-substituted —C 0 -C 6 alkylNR 10 (C═O)NR 11 R 12 , wherein the substituents are independently chosen from halo, hydroxy, amino, oxo, —COOH, —CONH 2 , C 1 -C 4 alkyl, C 2 -C 4 alkenyl, C 2 -C 4 alkynyl, C 1 -C 6 alkoxy, C 2 -C 4 alkanoyl, C 1 -C 4 alkylthio, C 1 -C 2 haloalkyl, C 1 -C 2 haloalkoxy, C 1 -C 4 alkoxycarbonyl, mono-C 1 -C 4 alkyl amino, di-C 1 -C 4 alkyl amino, mono-C 1 -C 4 alkylcarboxamido, di-C 1 -C 4 alkylcarboxamido, and phenyl, and

-L-G, where

L is chosen from

C 1 -C 2 alkylene,

C 0 -C 2 alkylene-O—,

—(C═O)—,

—(C 1 -C 2 alkylene)(C═O)—, and

G is chosen from

heterocycloalkyl,

C 3 -C 7 cycloalkyl,

aryl,

heteroaryl, and

wherein R 10 , R 11 , and R 12 are independently chosen from hydrogen, hydroxy, C 1 -C 6 alkyl, C 1 -C 6 alkoxy, C 3 -C 10 cycloalkyl, and heterocycloalkyl, and

wherein R 1 is further optionally substituted with 1 or more substituents independently chosen from hydroxy, nitro, cyano, amino, —SO 2 NH 2 , halo, C 1 -C 6 alkyl, C 2 -C 6 alkanoyl, C 1 -C 4 haloalkyl, C 1 -C 4 haloalkoxy, C 1 -C 6 alkylthio, C 3 -C 7 cycloalkyl, (C 1 -C 6 alkoxy)C 0 -C 6 alkyl, (mono-C 1 -C 6 alkylamino)C 0 -C 6 alkyl, (di-C 1 -C 6 alkylamino)C 0 -C 6 alkyl, and C 1 -C 6 alkoxycarbonyl;

R 3 is chosen from

hydrogen,

halo,

C 1 -C 7 alkyl,

heterocycloalkyl,

C 3 -C 7 cycloalkyl,

heteroaryl, and

Z 1 is chosen from

wherein

R 4 is chosen from

hydrogen,

C 1 -C 6 alkyl, which is optionally substituted with 1 or more substituents independently chosen from hydroxy, nitro, cyano, amino, halo, oxo, C 1 -C 6 alkyl, C 2 -C 6 alkenyl, C 2 -C 6 alkynyl, C 1 -C 6 alkoxy, C 1 -C 3 haloalkyl, C 1 -C 3 haloalkoxy, C 1 -C 6 alkylthio, (C 1 -C 6 alkoxy)C 1 -C 6 alkoxy, aminoC 1 -C 6 alkyl, mono-C 1 -C 6 alkylamino, di-C 1 -C 6 alkylamino, and —C(O)R 14 wherein R 14 is chosen from C 1 -C 6 alkyl, C 1 -C 3 haloalkyl, and phenyl,

C 3 -C 7 cycloalkyl, which is optionally substituted with 1 or more substituents independently chosen from hydroxy, nitro, cyano, amino, halo, oxo, C 1 -C 6 alkyl, C 2 -C 6 alkenyl, C 2 -C 6 alkynyl, C 1 -C 6 alkoxy, C 1 -C 3 haloalkyl, C 1 -C 3 haloalkoxy, C 1 -C 6 alkylthio, (C 1 -C 6 alkoxy)C 1 -C 6 alkoxy, aminoC 1 -C 6 alkyl, mono-C 1 -C 6 alkylamino, di-C 1 -C 6 alkylamino, and —C(O)R 14 wherein R 14 is chosen from C 1 -C 6 alkyl, C 1 -C 3 haloalkyl, and phenyl,

heterocycloalkyl, which is optionally substituted with 1 or more substituents independently chosen from hydroxy, nitro, cyano, amino, halo, oxo, C 1 -C 6 alkyl, C 2 -C 6 alkenyl, C 2 -C 6 alkynyl, C 1 -C 6 alkoxy, C 1 -C 3 haloalkyl, C 1 -C 3 haloalkoxy, C 1 -C 6 alkylthio, (C 1 -C 6 alkoxy)C 1 -C 6 alkoxy, aminoC 1 -C 6 alkyl, mono-C 1 -C 6 alkylamino, di-C 1 -C 6 alkylamino, and —C(O)R 14 wherein R 14 is chosen from C 1 -C 6 alkyl, C 1 -C 3 haloalkyl, and phenyl,

phenyl, which is optionally substituted with 1 or more substituents independently chosen from hydroxy, nitro, cyano, amino, halo, oxo, C 1 -C 6 alkyl, C 2 -C 6 alkenyl, C 2 -C 6 alkynyl, C 1 -C 6 alkoxy, C 1 -C 3 haloalkyl, C 1 -C 3 haloalkoxy, C 1 -C 6 alkylthio, (C 1 -C 6 alkoxy)C 1 -C 6 alkoxy, aminoC 1 -C 6 alkyl, mono-C 1 -C 6 alkylamino, di-C 1 -C 6 alkylamino, and —C(O)R 14 wherein R 14 is chosen from C 1 -C 6 alkyl, C 1 -C 3 haloalkyl, and phenyl, and

heteroaryl, which is optionally substituted with 1 or more substituents independently chosen from hydroxy, nitro, cyano, amino, halo, oxo, C 1 -C 6 alkyl, C 2 -C 6 alkenyl, C 2 -C 6 alkynyl, C 1 -C 6 alkoxy, C 1 -C 3 haloalkyl, C 1 -C 3 haloalkoxy, C 1 -C 6 alkylthio, (C 1 -C 6 alkoxy)C 1 -C 6 alkoxy, aminoC 1 -C 6 alkyl, mono-C 1 -C 6 alkylamino, di-C 1 -C 6 alkylamino, and —C(O)R 14 wherein R 14 is chosen from C 1 -C 6 alkyl, C 1 -C 3 haloalkyl, and phenyl; and

R 5 is chosen from isopropyl and t-butyl.

29 . At least one chemical entity of claim 28 , wherein A is 0.

30 . At least one chemical entity of claim 28 , wherein A is 1.

31 . At least one chemical entity of claim 28 , wherein

R 1 is chosen from

phenyl,

phenyl substituted with a group chosen from

hydroxy,

—CHO,

—COOH,

—CONH 2 ,

—CONHOH,

C 2 -C 6 alkenyl,

C 2 -C 6 alkynyl,

C 1 -C 6 alkyl,

C 1 -C 6 alkoxy,

heterocycloalkyl,

aryl,

heteroaryl,

—C 1 -C 6 alkylNR 10 (SO 2 )R 11 ,

—C 0 -C 6 alkylNR 10 (C═O)R 11 ,

—C 0 -C 6 alkyl(SO 2 )R 10 ,

—C 0 -C 6 alkylNR 10 (C═O)NR 11 R 12 ,

substituted —C 0 -C 6 alkylNR 10 (C═O)NR 11 R 12 chosen from mono-, di-, and tri-substituted —C 0 -C 6 alkylNR 10 (C═O)NR 1 R 12 , wherein the substituents are independently chosen from halo, hydroxy, amino, oxo, —COOH, —CONH 2 , C 1 -C 4 alkyl, C 2 -C 4 alkenyl, C 2 -C 4 alkynyl, C 1 -C 6 alkoxy, C 2 -C 4 alkanoyl, C 1 -C 4 alkylthio, C 1 -C 2 haloalkyl, C 1 -C 2 haloalkoxy, C 1 -C 4 alkoxycarbonyl, mono-C 1 -C 4 alkylamino, di-C 1 -C 4 alkylamino, mono-C 1 -C 4 alkylcarboxamido, di-C 1 -C 4 alkylcarboxamido, and phenyl, and

-L-G, where

L is chosen from

C 1 -C 2 alkylene,

C 0 -C 2 alkylene-O—,

—(C═O)—,

—(C 1 -C 2 alkylene)(C═O)—, and

G is chosen from

heterocycloalkyl,

C 3 -C 7 cycloalkyl,

substituted C 3 -C 7 cycloalkyl chosen from mono-, di-, and tri-substituted C 3 -C 7 cycloalkyl wherein the substituents are independently chosen from halo, hydroxy, amino, oxo, —COOH, —CONH 2 , C 1 -C 4 alkyl, C 2 -C 4 alkenyl, C 2 -C 4 alkynyl, C 1 -C 6 alkoxy, C 2 -C 4 alkanoyl, C 1 -C 4 alkylthio, C 1 -C 2 haloalkyl, C 1 -C 2 haloalkoxy, C 1 -C 4 alkoxycarbonyl, mono-C 1 -C 4 alkyl amino, di-C 1 -C 4 alkyl amino, mono-C 1 -C 4 alkylcarboxamido, di-C 1 -C 4 alkylcarboxamido, and phenyl,

aryl,

heteroaryl, and

pyridyl, and

pyridyl substituted with

hydroxy,

—CHO,

—COOH,

—CONH 2 ,

—CONHOH,

C 2 -C 6 alkenyl,

C 2 -C 6 alkynyl,

C 1 -C 6 alkyl,

C 1 -C 6 alkoxy,

heterocycloalkyl,

aryl,

heteroaryl,

—C 1 -C 6 alkylNR 10 (SO 2 )R 11 ,

—C 0 -C 6 alkylNR 10 (C═O)R 11 ,

—C 0 -C 6 alkyl(SO 2 )R 10 ,

—C 0 -C 6 alkylNR 10 (C═O)NR 11 R 12 , and

-L-G, where

L is chosen from

C 1 -C 2 alkylene,

C 0 -C 2 alkylene-O—,

—(C═O)—,

—(C 1 -C 2 alkylene)(C═O)—, and

G is chosen from

heterocycloalkyl,

C 3 -C 7 cycloalkyl,

aryl,

heteroaryl, and

32 . At least one chemical entity of claim 31 , wherein

R 1 is chosen from

phenyl substituted with a group chosen from hydroxy, —CHO, —COOH, —CONH 2 , and —CONHOH, and

pyridyl substituted with a group chosen from hydroxy, —CHO, —COOH, —CONH 2 , and —CONHOH,

33 . At least one chemical entity of claim 32 , wherein

R 1 is chosen from

phenyl substituted with a group chosen from hydroxy, —CHO, —COOH, —CONH 2 , and —CONHOH, and

pyridyl substituted with a group chosen from hydroxy, —CHO, —COOH, —CONH 2 , and —CONHOH,

34 . At least one chemical entity of claim 33 , wherein

R 1 is chosen from

phenyl substituted with a group chosen from hydroxy, —CHO, —COOH, —CONH 2 , and —CONHOH, and

pyridyl substituted with a group chosen from hydroxy, —CHO, —COOH, —CONH 2 , and —CONHOH,

wherein R 1 is optionally further mono-, di-, or tri-substituted with substituents independently chosen from hydroxy, cyano, halo, C 1 -C 2 alkyl, and C 1 -C 2 alkoxy.

35 . At least one chemical entity of claim 31 , wherein

R 1 is chosen from

phenyl substituted with a group chosen from

C 2 -C 6 alkenyl,

C 2 -C 6 alkynyl,

C 1 -C 6 alkyl,

C 1 -C 6 alkoxy,

heterocycloalkyl,

aryl,

heteroaryl, and

pyridyl substituted with a group chosen from,

C 2 -C 6 alkenyl,

C 2 -C 6 alkynyl,

C 1 -C 6 alkyl,

C 1 -C 6 alkoxy,

heterocycloalkyl,

aryl,

heteroaryl, and

36 . At least one chemical entity of claim 35 , wherein

R 1 is chosen from

phenyl substituted with a group chosen from

C 1 -C 6 alkyl,

C 1 -C 6 alkoxy, and

pyridyl substituted with a group chosen from

C 1 -C 6 alkyl,

C 1 -C 6 alkoxy, and

37 . At least one chemical entity of claim 36 , wherein

R 1 is chosen from

pyridyl, substituted with a group chosen from C 1 -C 6 hydroxyalkyl, C 1 -C 6 hydroxyalkoxy, (mono-C 1 -C 6 alkylamino)C 1 -C 6 alkoxy, (di-C 1 -C 6 alkylamino)C 1 -C 6 alkoxy, (C 1 -C 6 alkoxy)(C 1 -C 6 alkylamino)C 0 -C 6 alkyl, and (C 1 -C 6 alkoxy)(C 1 -C 6 alkoxy)C 1 -C 6 alkoxy,

wherein R 1 is optionally further mono-, di-, or tri-substituted with substituents independently chosen from hydroxy, cyano, halo, C 1 -C 2 alkyl, and C 1 -C 2 alkoxy.

38 . At least one chemical entity of claim 31 , wherein

R 1 is chosen from

phenyl substituted with a group chosen from

pyrrolidinyl,

morpholinyl,

thiomorpholinyl,

piperazinyl,

piperidinyl,

[1,4]diazepanyl,

octahydro-pyrido[1,2-a]pyrazin-2-yl,

substituted octahydro-pyrido[1,2-a]pyrazin-2-yl chosen from mono-, di-, and tri-substituted octahydro-pyrido[1,2-a]pyrazin-2-yl wherein the substituents are independently chosen from halo, hydroxy, cyano, amino, oxo, —COOH, —CONH 2 , C 1 -C 4 alkyl, C 1 -C 6 alkoxy, C 2 -C 4 alkanoyl, C 1 -C 2 haloalkyl, C 1 -C 2 haloalkoxy, C 1 -C 4 alkoxycarbonyl, mono-C 1 -C 4 alkylamino, di-C 1 -C 4 alkylamino, mono-C 1 -C 4 alkylcarboxamido, and di-C 1 -C 4 alkylcarboxamido,

phenyl,

imidazolyl,

5,6-dihydro-8H-[1,2,4]triazolo[4,3-a]pyrazine, and

pyridyl substituted with a group chosen from

pyrrolidinyl,

morpholinyl,

thiomorpholinyl,

piperazinyl,

piperidinyl,

[1,4]diazepanyl,

octahydro-pyrido[1,2-a]pyrazin-2-yl,

substituted octahydro-pyrido[1,2-a]pyrazin-2-yl chosen from mono-, di-, and tri-substituted octahydro-pyrido[1,2-a]pyrazin-2-yl wherein the substituents are independently chosen from halo, hydroxy, cyano, amino, oxo, —COOH, —CONH 2 , C 1 -C 4 alkyl, C 1 -C 6 alkoxy, C 2 -C 4 alkanoyl, C 1 -C 2 haloalkyl, C 1 -C 2 haloalkoxy, C 1 -C 4 alkoxycarbonyl, mono-C 1 -C 4 alkylamino, di-C 1 -C 4 alkylamino, mono-C 1 -C 4 alkylcarboxamido, and di-C 1 -C 4 alkylcarboxamido,

phenyl,

imidazolyl,

5,6-dihydro-8H-[1,2,4]triazolo[4,3-a]pyrazine, and

39 . At least one chemical entity of claim 38 , wherein

R 1 is chosen from

phenyl substituted with a group chosen from

pyrrolidinyl,

morpholinyl,

thiomorpholinyl,

piperazinyl,

piperidinyl,

[1,4]diazepanyl,

octahydro-pyrido[1,2-a]pyrazin-2-yl,

substituted octahydro-pyrido[1,2-a]pyrazin-2-yl chosen from mono-, di-, and tri-substituted octahydro-pyrido[1,2-a]pyrazin-2-yl wherein the substituents are independently chosen from halo, hydroxy, oxo, —COOH, —CONH 2 , C 1 -C 4 alkyl, C 1 -C 6 alkoxy, C 2 -C 4 alkanoyl, C 1 -C 4 alkoxycarbonyl, mono-C 1 -C 4 alkylamino, di-C 1 -C 4 alkylamino, mono-C 1 -C 4 alkylcarboxamido, and di-C 1 -C 4 alkylcarboxamido,

phenyl,

imidazolyl,

5,6-dihydro-8H-[1,2,4]triazolo[4,3-a]pyrazine, and

substituted 5,6-dihydro-8H-[1,2,4]triazolo[4,3-a]pyrazine chosen from mono-, di- and tri-substituted 5,6-dihydro-8H-[1,2,4]triazolo[4,3-a]pyrazine, wherein the substituents are independently chosen from halo, hydroxy, oxo, —COOH, —CONH 2 , C 1 -C 4 alkyl, C 1 -C 6 alkoxy, C 2 -C 4 alkanoyl, C 1 -C 4 alkoxycarbonyl, mono-C 1 -C 4 alkylamino, di-C 1 -C 4 alkylamino, mono-C 1 -C 4 alkylcarboxamido, and di-C 1 -C 4 alkylcarboxamido, and

pyridyl substituted with a group chosen from

pyrrolidinyl,

morpholinyl,

thiomorpholinyl,

piperazinyl,

piperidinyl,

[1,4]diazepanyl,

octahydro-pyrido[1,2-a]pyrazin-2-yl,

substituted octahydro-pyrido[1,2-a]pyrazin-2-yl chosen from mono-, di-, and tri-substituted octahydro-pyrido[1,2-a]pyrazin-2-yl wherein the substituents are independently chosen from halo, hydroxy, oxo, —COOH, —CONH 2 , C 1 -C 4 alkyl, C 1 -C 6 alkoxy, C 2 -C 4 alkanoyl, C 1 -C 4 alkoxycarbonyl, mono-C 1 -C 4 alkylamino, di-C 1 -C 4 alkylamino, mono-C 1 -C 4 alkylcarboxamido, and di-C 1 -C 4 alkylcarboxamido,

phenyl,

imidazolyl,

5,6-dihydro-8H-[1,2,4]triazolo[4,3-a]pyrazine, and

substituted 5,6-dihydro-8H-[1,2,4]triazolo[4,3-a]pyrazine chosen from mono-, di- and tri-substituted 5,6-dihydro-8H-[1,2,4]triazolo[4,3-a]pyrazine, wherein the substituents are independently chosen from halo, hydroxy, oxo, —COOH, —CONH 2 , C 1 -C 4 alkyl, C 1 -C 6 alkoxy, C 2 -C 4 alkanoyl, C 1 -C 4 alkoxycarbonyl, mono-C 1 -C 4 alkyl amino, di-C 1 -C 4 alkylamino, mono-C 1 -C 4 alkylcarboxamido, and di-C 1 -C 4 alkylcarboxamido,

wherein R 1 is optionally further mono-, di-, or tri-substituted with substituents independently chosen from hydroxy, cyano, halo, C 1 -C 2 alkyl, and C 1 -C 2 alkoxy.

40 . At least one chemical entity of claim 31 , wherein

R 1 is chosen from

phenyl substituted with a group chosen from

—C 1 -C 6 alkylene(C═O)OR 10 ,

—C 0 -C 6 alkylene(C═O)NR 10 R 11 ,

—C 1 -C 6 alkylNR 10 (SO 2 )R 11 ,

—C 0 -C 6 alkylNR 10 (C═O)R 11 ,

—C 0 -C 6 alkyl(SO 2 )R 10 ,

—C 0 -C 6 alkylNR 10 (C═O)NR 11 R 12 , and

pyridyl substituted with a group chosen from

—C 1 -C 6 alkylene(C═O)OR 10 ,

—C 0 -C 6 alkylene(C═O)NR 10 R 11 ,

—C 1 -C 6 alkylNR 10 (SO 2 )R 11 ,

—C 0 -C 6 alkylNR 10 (C═O)R 11 ,

—C 0 -C 6 alkyl(SO 2 )R 10 ,

—C 0 -C 6 alkylNR 10 (C═O)NR 11 R 12 and

wherein R 10 , R 11 , and R 12 are independently chosen from hydrogen, hydroxy, C 1 -C 6 alkyl, C 1 -C 6 alkoxy, C 3 -C 7 cycloalkyl, and heterocycloalkyl, and

41 . At least one chemical entity of claim 40 , wherein

R 1 is chosen from

phenyl substituted with a group chosen from

—C 1 -C 4 alkylene(C═O)OR 10 ,

—C 0 -C 4 alkylene(C═O)NR 10 R 11 ,

—C 1 -C 4 alkylNR 10 (SO 2 )R 11 ,

—C 0 -C 4 alkylNR 10 (C═O)R 11 ,

—C 0 -C 4 alkyl(SO 2 )R 10 ,

—C 0 -C 4 alkylNR 10 (C═O)NR 11 R 12 and

pyridyl substituted with a group chosen from

—C 1 -C 4 alkylene(C═O)OR 10 ,

substituted —C 1 -C 4 alkylene(C═O)OR 10 chosen from mono-, di-, and tri-substituted —C 1 -C 6 alkylene(C═O)OR 10 wherein the substituents are independently chosen from halo, hydroxy, amino, oxo, —COOH, —CONH 2 , C 1 -C 6 alkoxy, C 2 -C 4 alkanoyl, C 1 -C 4 alkoxycarbonyl, mono-C 1 -C 4 alkylamino, di-C 1 -C 4 alkylamino, mono-C 1 -C 4 alkylcarboxamido, and di-C 1 -C 4 alkylcarboxamido,

—C 0 -C 4 alkylene(C═O)NR 10 R 11 ,

substituted —C 0 -C 4 alkylene(C═O)NR 10 R 11 chosen from mono-, di-, and tri-substituted —C 0 -C 6 alkylene(C═O)NR 10 R 11 wherein the substituents are independently chosen from halo, hydroxy, amino, oxo, —COOH, —CONH 2 , C 1 -C 6 alkoxy, C 2 -C 4 alkanoyl, C 1 -C 4 alkoxycarbonyl, mono-C 1 -C 4 alkylamino, di-C 1 -C 4 alkylamino, mono-C 1 -C 4 alkylcarboxamido, and di-C 1 -C 4 alkylcarboxamido,

—C 1 -C 4 alkylNR 10 (SO 2 )R 11 ,

—C 0 -C 4 alkylNR 10 (C═O)R 11 ,

—C 0 -C 4 alkyl(SO 2 )R 10 ,

—C 0 -C 4 alkylNR 10 (C═O)NR 11 R 12 and

wherein R 1 is optionally further mono-, di-, or tri-substituted with substituents independently chosen from hydroxy, cyano, halo, C 1 -C 2 alkyl, and C 1 -C 2 alkoxy.

42 . At least one chemical entity of claim 31 , wherein

R 1 is chosen from

phenyl substituted with a group chosen from

-L-G, where

L is chosen from

C 1 -C 2 alkylene,

C 0 -C 2 alkylene-O—,

—(C═O)—,

—(C 1 -C 2 alkyl)(C═O)—, and

G is chosen from

heterocycloalkyl,

C 3 -C 7 cycloalkyl,

aryl,

heteroaryl, and

pyridyl substituted with a group chosen from

-L-G, where

L is chosen from

C 1 -C 2 alkylene,

C 0 -C 2 alkylene-O—,

—(C═O)—,

—(C 1 -C 2 alkyl)(C═O)—, and

G is chosen from

heterocycloalkyl,

C 3 -C 7 cycloalkyl,

aryl,

heteroaryl, and

43 . At least one chemical entity of claim 42 , wherein

R 1 is chosen from

phenyl substituted with -L-G, where

L is chosen from

C 1 -C 2 alkylene,

substituted C 1 -C 2 alkylene chosen from mono-, di-, and tri-substituted C 1 -C 2 alkylene wherein the substituents are independently chosen from halo, hydroxy, cyano, amino, oxo, —COOH, —CONH 2 , C 1 -C 4 alkyl, C 1 -C 6 alkoxy, C 2 -C 4 alkanoyl, C 1 -C 2 haloalkyl, C 1 -C 2 haloalkoxy, C 1 -C 4 alkoxycarbonyl, mono-C 1 -C 4 alkylamino, di-C 1 -C 4 alkylamino, mono-C 1 -C 4 alkylcarboxamido, and di-C 1 -C 4 alkylcarboxamido,

C 0 -C 2 alkylene-O—,

—(C═O)—,

—(C 1 -C 2 alkyl)(C═O)—, and

G is chosen from

pyrrolidinyl,

substituted pyrrolidinyl chosen from mono-, di-, and tri-substituted pyrrolidinyl wherein the substituents are independently chosen from halo, hydroxy, cyano, amino, oxo, —COOH, —CONH 2 , C 1 -C 4 alkyl, C 1 -C 6 alkoxy, C 2 -C 4 alkanoyl C 1 -C 6 alkoxy, C 2 -C 4 alkanoyl, C 1 -C 2 haloalkyl, C 1 -C 2 haloalkoxy, C 1 -C 4 alkoxycarbonyl, mono-C 1 -C 4 alkylamino, di-C 1 -C 4 alkylamino, mono-C 1 -C 4 alkylcarboxamido, and di-C 1 -C 4 alkylcarboxamido,

morpholinyl,

thiomorpholinyl,

piperazinyl,

piperidinyl,

substituted piperidinyl chosen from mono-, di-, and tri-substituted piperidinyl wherein the substituents are independently chosen from halo, hydroxy, cyano, amino, oxo, —COOH, —CONH 2 , C 1 -C 4 alkyl, C 1 -C 6 alkoxy, C 2 -C 4 alkanoyl, C 1 -C 2 haloalkyl, C 1 -C 2 haloalkoxy, C 1 -C 4 alkoxycarbonyl, mono-C 1 -C 4 alkyl amino, di-C 1 -C 4 alkylamino, mono-C 1 -C 4 alkylcarboxamido, and di-C 1 -C 4 alkylcarboxamido,

[1,4]diazepanyl,

octahydro-pyrido[1,2-a]pyrazin-2-yl,

substituted octahydro-pyrido[1,2-a]pyrazin-2-yl chosen from mono-, di-, and tri-substituted octahydro-pyrido[1,2-a]pyrazin-2-yl wherein the substituents are independently chosen from halo, hydroxy, cyano, amino, oxo, —COOH, —CONH 2 , C 1 -C 4 alkyl, C 1 -C 6 alkoxy, C 2 -C 4 alkanoyl, C 1 -C 2 haloalkyl, C 1 -C 2 haloalkoxy, C 1 -C 4 alkoxycarbonyl, mono-C 1 -C 4 alkylamino, di-C 1 -C 4 alkylamino, mono-C 1 -C 4 alkylcarboxamido, and di-C 1 -C 4 alkylcarboxamido,

phenyl,

imidazolyl,

5,6-dihydro-8H-[1,2,4]triazolo[4,3-a]pyrazine,

pyridyl substituted with -L-G, where

L is chosen from

C 1 -C 2 alkylene,

substituted C 1 -C 2 alkylene chosen from mono-, di-, and tri-substituted C 1 -C 2 alkylene wherein the substituents are independently chosen from halo, hydroxy, cyano, amino, oxo, —COOH, —CONH 2 , C 1 -C 4 alkyl, C 1 -C 6 alkoxy, C 2 -C 4 alkanoyl, C 1 -C 2 haloalkyl, C 1 -C 2 haloalkoxy, C 1 -C 4 alkoxycarbonyl, mono-C 1 -C 4 alkylamino, di-C 1 -C 4 alkylamino, mono-C 1 -C 4 alkylcarboxamido, and di-C 1 -C 4 alkylcarboxamido,

C 0 -C 2 alkylene-O—,

—(C═O)—,

—(C 1 -C 2 alkyl)(C═O)—, and

substituted —(C 1 -C 2 alkyl)(C═O)— chosen from mono-, di-, and tri-substituted —(C—C 2 alkyl)(C═O)— wherein the substituents are independently chosen from halo, hydroxy, cyano, amino, oxo, —COOH, —CONH 2 , C 1 -C 4 alkyl, C 1 -C 6 alkoxy, C 2 -C 4 alkanoyl, C 1 -C 2 haloalkyl, C 1 -C 2 haloalkoxy, C 1 -C 4 alkoxycarbonyl, mono-C 1 -C 4 alkylamino, di-C 1 -C 4 alkylamino, mono-C 1 -C 4 alkylcarboxamido, and di-C 1 -C 4 alkylcarboxamido, and

G is chosen from

pyrrolidinyl,

substituted pyrrolidinyl chosen from mono-, di-, and tri-substituted pyrrolidinyl wherein the substituents are independently chosen from halo, hydroxy, cyano, amino, oxo, —COOH, —CONH 2 , C 1 -C 4 alkyl, C 1 -C 6 alkoxy, C 2 -C 4 alkanoyl, C 1 -C 2 haloalkyl, C 1 -C 2 haloalkoxy, C 1 -C 4 alkoxycarbonyl, mono-C 1 -C 4 alkylamino, di-C 1 -C 4 alkylamino, mono-C 1 -C 4 alkylcarboxamido, and di-C 1 -C 4 alkylcarboxamido,

morpholinyl,

thiomorpholinyl,

piperazinyl,

piperidinyl,

[1,4]diazepanyl,

octahydro-pyrido[1,2-a]pyrazin-2-yl,

substituted octahydro-pyrido[1,2-a]pyrazin-2-yl chosen from mono-, di-, and tri-substituted octahydro-pyrido[1,2-a]pyrazin-2-yl wherein the substituents are independently chosen from halo, hydroxy, cyano, amino, oxo, —COOH, —CONH 2 , C 1 -C 4 alkyl, C 1 -C 6 alkoxy, C 2 -C 4 alkanoyl, C 1 -C 2 haloalkyl, C 1 -C 2 haloalkoxy, C 1 -C 4 alkoxycarbonyl, mono-C 1 -C 4 alkylamino, di-C 1 -C 4 alkylamino, mono-C 1 -C 4 alkylcarboxamido, and di-C 1 -C 4 alkylcarboxamido,

phenyl,

imidazolyl,

substituted imidazolyl chosen from mono-, di-, and tri-substituted imidazolyl wherein the substituents are independently chosen from halo, hydroxy, cyano, amino, oxo, —COOH, —CONH 2 , C 1 -C 4 alkyl, C 1 -C 6 alkoxy, C 2 -C 4 alkanoyl, C 1 -C 2 haloalkyl, C 1 -C 2 haloalkoxy, C 1 -C 4 alkoxycarbonyl, mono-C 1 -C 4 alkyl amino, di-C 1 -C 4 alkyl amino, mono-C 1 -C 4 alkylcarboxamido, and di-C 1 -C 4 alkylcarboxamido,

5,6-dihydro-8H-[1,2,4]triazolo[4,3-a]pyrazine, and

substituted 5,6-dihydro-8H-[1,2,4]triazolo[4,3-a]pyrazine chosen from mono-, di-, and tri-substituted 5,6-dihydro-8H-[1,2,4]triazolo[4,3-a]pyrazine wherein the substituents are independently chosen from halo, hydroxy, cyano, amino, oxo, —COOH, —CONH 2 , C 1 -C 4 alkyl, C 1 -C 6 alkoxy, C 2 -C 4 alkanoyl, C 1 -C 2 haloalkyl, C 1 -C 2 haloalkoxy, C 1 -C 4 alkoxycarbonyl, mono-C 1 -C 4 alkyl amino, di-C 1 -C 4 alkyl amino, mono-C 1 -C 4 alkylcarboxamido, and di-C 1 -C 4 alkylcarboxamido,

44 . At least one chemical entity of claim 43 , wherein

R 1 is chosen from

phenyl substituted with -L-G, where

L is chosen from

C 1 -C 2 alkylene,

C 0 -C 2 alkylene-O—,

—(C═O)—,

—(C 1 -C 2 alkyl)(C═O)—, and

G is chosen from

pyrrolidinyl,

morpholinyl,

thiomorpholinyl,

piperazinyl,

piperidinyl,

[1,4]diazepanyl,

octahydro-pyrido[1,2-a]pyrazin-2-yl,

substituted octahydro-pyrido[1,2-a]pyrazin-2-yl chosen from mono-, di-, and tri-substituted octahydro-pyrido[1,2-a]pyrazin-2-yl wherein the substituents are independently chosen from halo, hydroxy, oxo, —COOH, —CONH 2 , C 1 -C 4 alkyl, C 1 -C 6 alkoxy, C 2 -C 4 alkanoyl, C 1 -C 4 alkoxycarbonyl, mono-C 1 -C 4 alkylamino, di-C 1 -C 4 alkylamino, mono-C 1 -C 4 alkylcarboxamido, and di-C 1 -C 4 alkylcarboxamido,

phenyl,

imidazolyl,

5,6-dihydro-8H-[1,2,4]triazolo[4,3-a]pyrazine, and

substituted 5,6-dihydro-8H-[1,2,4]triazolo[4,3-a]pyrazine chosen from mono-, di- and tri-substituted 5,6-dihydro-8H-[1,2,4]triazolo[4,3-a]pyrazine, wherein the substituents are independently chosen from halo, hydroxy, oxo, —COOH, —CONH 2 , C 1 -C 4 alkyl, C 1 -C 6 alkoxy, C 2 -C 4 alkanoyl, C 1 -C 4 alkoxycarbonyl, mono-C 1 -C 4 alkylamino, di-C 1 -C 4 alkylamino, mono-C 1 -C 4 alkylcarboxamido, and di-C 1 -C 4 alkylcarboxamido, and

pyridyl substituted with -L-G, where

L is chosen from

C 1 -C 2 alkylene,

substituted C 1 -C 2 alkylene chosen from mono-, di-, and tri-substituted C 1 -C 2 alkylene wherein the substituents are independently chosen from halo, hydroxy, oxo, —COOH, —CONH 2 , C 1 -C 4 alkyl, C 1 -C 6 alkoxy, C 2 -C 4 alkanoyl C 1 -C 6 alkoxy, C 2 -C 4 alkanoyl, C 1 -C 4 alkoxycarbonyl, mono-C 1 -C 4 alkylamino, di-C 1 -C 4 alkylamino, mono-C 1 -C 4 alkylcarboxamido, and di-C 1 -C 4 alkylcarboxamido,

C 0 -C 2 alkylene-O—,

—(C═O)—,

—(C 1 -C 2 alkyl)(C═O)—, and

G is chosen from

pyrrolidinyl,

morpholinyl,

thiomorpholinyl,

piperazinyl,

piperidinyl,

[1,4]diazepanyl,

octahydro-pyrido[1,2-a]pyrazin-2-yl,

substituted octahydro-pyrido[1,2-a]pyrazin-2-yl chosen from mono-, di-, and tri-substituted octahydro-pyrido[1,2-a]pyrazin-2-yl wherein the substituents are independently chosen from halo, hydroxy, oxo, —COOH, —CONH 2 , C 1 -C 4 alkyl, C 1 -C 6 alkoxy, C 2 -C 4 alkanoyl, C 1 -C 4 alkoxycarbonyl, mono-C 1 -C 4 alkylamino, di-C 1 -C 4 alkylamino, mono-C 1 -C 4 alkylcarboxamido, and di-C 1 -C 4 alkylcarboxamido,

phenyl,

imidazolyl,

5,6-dihydro-8H-[1,2,4]triazolo[4,3-a]pyrazine, and

substituted 5,6-dihydro-8H-[1,2,4]triazolo[4,3-a]pyrazine chosen from mono-, di- and tri-substituted 5,6-dihydro-8H-[1,2,4]triazolo[4,3-a]pyrazine, wherein the substituents are independently chosen from halo, hydroxy, oxo, —COOH, —CONH 2 , C 1 -C 4 alkyl, C 1 -C 6 alkoxy, C 2 -C 4 alkanoyl, C 1 -C 4 alkoxycarbonyl, mono-C 1 -C 4 alkylamino, di-C 1 -C 4 alkylamino, mono-C 1 -C 4 alkylcarboxamido, and di-C 1 -C 4 alkylcarboxamido,

wherein R 1 is optionally further mono-, di-, or tri-substituted with substituents independently chosen from hydroxy, cyano, halo, C 1 -C 2 alkyl, and C 1 -C 2 alkoxy.

45 . At least one chemical entity of claim 44 , wherein

L is chosen from

phenyl substituted with a group chosen from —CH 2 —, —(C═O)—, and —(CH 2 )(C═O)— and

pyridyl substituted with a group chosen from —CH 2 —, —(C═O)—, and —(CH 2 )(C═O)— and

G is chosen from

pyrrolidinyl,

substituted pyrrolidinyl chosen from mono-, di- and tri-substituted pyrrolidinyl, wherein the substituents are independently chosen from halo, hydroxy, oxo, —COOH, —CONH 2 , C 1 -C 2 alkyl, C 1 -C 2 alkoxy, C 2 -alkanoyl, C 1 -C 2 alkoxycarbonyl, mono-C 1 -C 2 alkylamino, di-C 1 -C 2 alkylamino, mono-C 1 -C 2 alkylcarboxamido, and di-C 1 -C 2 alkylcarboxamido,

morpholinyl,

substituted morpholinyl chosen from mono-, di- and tri-substituted morpholinyl, wherein the substituents are independently chosen from halo, hydroxy, oxo, —COOH, —CONH 2 , C 1 -C 2 alkyl, C 1 -C 2 alkoxy, C 2 -alkanoyl, C 1 -C 2 alkoxycarbonyl, mono-C 1 -C 2 alkylamino, di-C 1 -C 2 alkylamino, mono-C 1 -C 2 alkylcarboxamido, and di-C 1 -C 2 alkylcarboxamido,

thiomorpholinyl,

substituted thiomorpholinyl chosen from mono-, di- and tri-substituted thiomorpholinyl, wherein the substituents are independently chosen from halo, hydroxy, oxo, —COOH, —CONH 2 , C 1 -C 2 alkyl, C 1 -C 2 alkoxy, C 2 -alkanoyl, C 1 -C 2 alkoxycarbonyl, mono-C 1 -C 2 alkylamino, di-C 1 -C 2 alkylamino, mono-C 1 -C 2 alkylcarboxamido, and di-C 1 -C 2 alkylcarboxamido,

piperazinyl,

substituted piperazinyl chosen from mono-, di- and tri-substituted piperazinyl, wherein the substituents are independently chosen from halo, hydroxy, oxo, —COOH, —CONH 2 , C 1 -C 2 alkyl, C 1 -C 2 alkoxy, C 2 -alkanoyl, C 1 -C 2 alkoxycarbonyl, mono-C 1 -C 2 alkylamino, di-C 1 -C 2 alkylamino, mono-C 1 -C 2 alkylcarboxamido, and di-C 1 -C 2 alkylcarboxamido,

piperidinyl,

substituted piperidinyl chosen from mono-, di- and tri-substituted piperidinyl, wherein the substituents are independently chosen from halo, hydroxy, oxo, —COOH, —CONH 2 , C 1 -C 2 alkyl, C 1 -C 2 alkoxy, C 2 -alkanoyl, C 1 -C 2 alkoxycarbonyl, mono-C 1 -C 2 alkylamino, di-C 1 -C 2 alkylamino, mono-C 1 -C 2 alkylcarboxamido, and di-C 1 -C 2 alkylcarboxamido,

[1,4]diazepanyl, and

substituted [1,4]diazepanyl chosen from mono-, di- and tri-substituted [1,4]diazepanyl, wherein the substituents are independently chosen from halo, hydroxy, oxo, —COOH, —CONH 2 , C 1 -C 2 alkyl, C 1 -C 2 alkoxy, C 2 -alkanoyl, C 1 -C 2 alkoxycarbonyl, mono-C 1 -C 2 alkylamino, di-C 1 -C 2 alkylamino, mono-C 1 -C 2 alkylcarboxamido, and di-C 1 -C 2 alkylcarboxamido,

octahydro-pyrido[1,2-a]pyrazin-2-yl, and

substituted octahydro-pyrido[1,2-a]pyrazin-2-yl chosen from mono-, di-, and tri-substituted octahydro-pyrido[1,2-a]pyrazin-2-yl wherein the substituents are independently chosen from halo, hydroxy, oxo, —COOH, —CONH 2 , C 1 -C 2 alkyl, C 1 -C 2 alkoxy, C 2 -alkanoyl, C 1 -C 2 alkoxycarbonyl, mono-C 1 -C 2 alkylamino, di-C 1 -C 2 alkylamino, mono-C 1 -C 2 alkylcarboxamido, and di-C 1 -C 2 alkylcarboxamido.

46 . At least one chemical entity of claim 28 , which is chosen from compounds of Formula 7

wherein

B is chosen from 0 and 1;

R is chosen from

hydroxy,

—CHO,

—COOH,

—CONH 2 ,

—CONHOH,

C 2 -C 6 alkenyl,

C 2 -C 6 alkynyl,

C 1 -C 6 alkyl,

C 1 -C 6 alkoxy,

heterocycloalkyl,

aryl,

heteroaryl,

—C 1 -C 6 alkylNR 10 (SO 2 )R 11 ,

—C 0 -C 6 alkylNR 10 (C═O)R 11 ,

—C 0 -C 6 alkyl(SO 2 )R 10 ,

—C 0 -C 6 alkylNR 10 (C═O)NR 11 R 12 ,

where R 10 , R 11 , and R 12 are independently chosen from hydrogen, hydroxy, C 1 -C 6 alkyl, C 1 -C 6 alkoxy, C 3 -C 10 cycloalkyl, and heterocycloalkyl, and

-L-G, where

L is chosen from

C 1 -C 2 alkylene,

C 0 -C 2 alkylene-O—,

—(C═O)—,

—(C 1 -C 2 alkylene)(C═O)—, and

and G is chosen from

heterocycloalkyl,

C 3 -C 7 cycloalkyl,

aryl,

heteroaryl, and

47 . At least one chemical entity of claim 46 , which is chosen from compounds of Formula 8

48 . At least one chemical entity of claim 47 , which is chosen from compounds of Formula 9

49 . At least one chemical entity of claim 28 , wherein R 3 is chosen from hydrogen and methyl.

50 . At least one chemical entity of claim 1 , wherein the at least one chemical entity exhibits an IC 50 of 1 micromolar or less in an in vitro biochemical assay of Btk activity.

51 . At least one chemical entity of claim 50 , wherein the at least one chemical entity exhibits an IC 50 of 100 nanomolar or less in an in vitro biochemical assay of Btk activity.

52 . At least one chemical entity of claim 52 , wherein the at least one chemical entity-exhibits an IC 50 of 10 nanomolar or less in an in vitro biochemical assay of Btk activity.

53 . At least one chemical entity of claim 1 , wherein the at least one chemical entity exhibits an IC 50 of 10 micromolar or less in an assay for inhibition of B-cell proliferation.

54 . At least one chemical entity of claim 53 , wherein the at least one chemical entity exhibits an IC 50 of 1 micromolar or less in an assay for inhibition of B-cell proliferation.

55 . At least one chemical entity of claim 54 , wherein the at least one chemical entity exhibits an IC 50 of 500 nanomolar or less in an assay for inhibition of B-cell proliferation.

56 . At least one chemical entity of claim 1 , wherein the at least one chemical entity exhibits an IC 50 value in an assay for inhibition of T-cell proliferation that is at least 3-fold greater than an IC 50 value that the at least one chemical entity exhibits in an assay for inhibition of B-cell proliferation.

57 . At least one chemical entity of claim 56 , wherein the at least one chemical entity exhibits an IC 50 value in an assay for inhibition of T-cell proliferation that is at least 5-fold greater than an IC 50 value that the at least one chemical entity exhibits in an assay for inhibition of B-cell proliferation.

58 . At least one chemical entity of claim 57 , wherein the at least one chemical entity exhibits an IC 50 value in an assay for inhibition of T-cell proliferation that is at least 10-fold greater than an IC 50 value the that at least one chemical entity exhibits in an assay for inhibition of B-cell proliferation.

59 . A pharmaceutical composition, comprising at least one chemical entity of claim 1 , together with at least one pharmaceutically acceptable carrier or excipient.

60 . A pharmaceutical composition of claim 59 , wherein the composition is formulated in a form chosen from injectable fluids, aerosols, creams, gels, tablets, pills, capsules, syrups, ophthalmic solutions, and transdermal patches.

61 . A packaged pharmaceutical composition, comprising a pharmaceutical composition of claim 59; and instructions for using the composition to treat a patient suffering from a disease responsive to Btk inhibition.

62 . The packaged pharmaceutical composition of claim 61 wherein the disease responsive to Btk inhibition is cancer.

63 . The packaged pharmaceutical composition of claim 61 wherein the disease responsive to Btk inhibition is chosen from autoimmune diseases, inflammatory diseases, and acute inflammatory reactions.

64 . A method for treating a patient having a disease responsive to inhibition of Btk activity, comprising administering to the patient an effective amount of at least one chemical entity of claim 1 .

65 . The method of claim 64 wherein the patient is a human.

66 . The method of claim 64 wherein the patient is chosen from cats and dogs.

67 . The method of claim 64 wherein the disease responsive to Btk inhibition is cancer.

68 . The method of claim 64 wherein the disease responsive to Btk inhibition is administered by a method chosen from intravenously, intramuscularly, and parenterally.

69 . The method of claim 64 wherein at least one chemical entity is administered orally.

70 . The method of claim 64 wherein the at least one chemical entity is administered intravenously, intramuscularly, or parenterally.

71 . A method for increasing sensitivity of cancer cells to chemotherapy, comprising administering to a patient undergoing chemotherapy with a chemotherapeutic agent an amount of at least one chemical entity of claim 1 , sufficient to increase the sensitivity of cancer cells to the chemotherapeutic agent.

72 . A method of reducing medication error and enhancing therapeutic compliance of a patient being treated for a disease responsive to Btk inhibition, the method comprising providing a packaged pharmaceutical preparation of claim 61 wherein the instructions additionally include contraindication and adverse reaction information pertaining to the packaged pharmaceutical composition.

73 . A method for increasing sensitivity of cancer cells to chemotherapy, comprising administering to a patient undergoing chemotherapy with a chemotherapeutic agent an amount of at least one chemical entity of claim 1 , sufficient to increase the sensitivity of cancer cells to the chemotherapeutic agent.

74 . A method for inhibiting ATP hydrolysis, the method comprising contacting cells expressing Btk with at least one chemical entity of claim 1 in an amount sufficient to detectably decrease the level of ATP hydrolysis in vitro.

75 . The method of claim 74 wherein the cells are present in a mammal.

76 . The method of claim 75 wherein the mammal is a human.

77 . The method of claim 75 wherein the mammal is chosen from cats and dogs.

78 . A method for determining the presence of Btk in a sample, comprising contacting the sample with at least one chemical entity of claim 1 under conditions that permit detection of Btk activity, detecting a level of Btk activity in the sample, and therefrom determining the presence or absence of Btk in the sample.

79 . A method for inhibiting B-cell proliferation comprising contacting cells expressing Btk with at least one chemical entity, of claim 1 , in an amount sufficient to detectably decrease Btk activity in vitro.

80 . At least one one chemical entity chosen from

4-tert-Butyl-N-[3-(8-phenylamino-imidazo[1,2-a]pyrazin-6-yl)-phenyl]-benzamide;

4-Isopropyl-N-[3-(8-phenylamino-imidazo[1,2-a]pyrazin-6-yl)-phenyl]-benzamide;

4-tert-Butyl-N-{3-[8-(pyridin-3-ylamino)-imidazo[1,2-a]pyrazin-6-yl]-phenyl}-benzamide;

4-tert-Butyl-N-{3-[8-(4-methoxy-phenylamino)-imidazo[1,2-a]pyrazin-6-yl]-phenyl}-benzamide;

4-tert-Butyl-N-{3-[8-(pyridin-4-ylamino)-imidazo[1,2-a]pyrazin-6-yl]-phenyl}-benzamide;

4-tert-Butyl-N-{3-[8-(4-fluoro-phenylamino)-imidazo[1,2-a]pyrazin-6-yl]-phenyl}-benzamide;

4-tert-Butyl-N-{3-[8-(3-fluoro-phenylamino)-imidazo[1,2-a]pyrazin-6-yl]-phenyl}-benzamide;

4-{6-[3-(4-tert-Butyl-benzoylamino)-phenyl]-imidazo[1,2-a]pyrazin-8-ylamino}-benzoic acid;

4-tert-Butyl-N-{3-[8-(3-methoxy-phenylamino)-imidazo[1,2-a]pyrazin-6-yl]-phenyl}-benzamide;

4-tert-Butyl-N-{3-[8-(6-methoxy-pyridin-3-ylamino)-imidazo[1,2-a]pyrazin-6-yl]-phenyl}-benzamide;

3-{6-[3-(4-tert-Butyl-benzoylamino)-phenyl]-imidazo[1,2-a]pyrazin-8-ylamino}-benzoic acid;

4-{6-[3-(4-Isopropyl-benzoylamino)-phenyl]-imidazo[1,2-a]pyrazin-8-ylamino}-benzoic acid;

4-tert-Butyl-N-{3-[8-(4-cyano-phenylamino)-imidazo[1,2-a]pyrazin-6-yl]-phenyl}-benzamide;

4-{6-[3-(4-tert-Butyl-benzoylamino)-phenyl]-imidazo[1,2-a]pyrazin-8-ylamino}-benzamide;

4-tert-Butyl-N-{3-[8-(4-morpholin-4-yl-phenylamino)-imidazo[1,2-a]pyrazin-6-yl]-phenyl}-benzamide;

3-{6-[3-(4-tert-Butyl-benzoylamino)-phenyl]-imidazo[1,2-a]pyrazin-8-ylamino}-benzoic acid;

4-tert-Butyl-N-{3-[8-(3-fluoro-4-methoxy-phenylamino)-imidazo[1,2-a]pyrazin-6-yl]-phenyl}-benzamide;

4-{6-[3-(4-tert-Butyl-benzoylamino)-phenyl]-imidazo[1,2-a]pyrazin-8-ylamino}-benzoic N-Methyl amide;

4-tert-Butyl-N-{3-[8-(4-piperazin-1-yl-phenylamino)-imidazo[1,2-a]pyrazin-6-yl]-phenyl}-benzamide;

4-tert-Butyl-N-[3-(8-m-tolylamino-imidazo[1,2-a]pyrazin-6-yl)-phenyl]-benzamide;

(4-{6-[3-(4-tert-Butyl-benzoylamino)-phenyl]-imidazo[1,2-a]pyrazin-8-ylamino}-phenyl)-acetic acid methyl ester;

(4-{6-[3-(4-tert-Butyl-benzoylamino)-phenyl]-imidazo[1,2-a]pyrazin-8-ylamino}-phenyl)-acetic-acid;

4-tert-Butyl-N-(3-{8-[4-(piperazine-1-carbonyl)-phenylamino]-imidazo[1,2-a]pyrazin-6-yl}-phenyl)-benzamide;

4-tert-Butyl-N-(3-{8-[4-(2-methoxy-ethoxymethoxy)-phenylamino]-imidazo[1,2-a]pyrazin-6-yl}-phenyl)-benzamide;

4-tert-Butyl-N-{3-[8-(4-hydroxy-phenylamino)-imidazo[1,2-a]pyrazin-6-yl]-phenyl}-benzamide;

4-tert-Butyl-N-{3-[8-(6-piperazin-1-yl-pyridin-3-ylamino)-imidazo[1,2-a]pyrazin-6-yl]-phenyl}-benzamide;

4-tert-Butyl-N-(3-{8-[4-(4-methyl-piperazin-1-yl)-phenylamino]-imidazo[1,2-a]pyrazin-6-yl}-phenyl)-benzamide;

4-tert-Butyl-N-{3-[8-(4-[1,4]diazepan-1-yl-phenylamino)-imidazo[1,2-a]pyrazin-6-yl]-phenyl}-benzamide;

4-tert-Butyl-N-(3-{8-[4-(4-oxo-piperidin-1-yl)-phenylamino]-imidazo[1,2-a]pyrazin-6-yl}-phenyl)-benzamide;

(4-{6-[3-(4-tert-Butyl-benzoylamino)-phenyl]-imidazo[1,2-a]pyrazin-8-ylamino}-benzoylamino)-acetic acid methyl ester;

(4-{6-[3-(4-tert-Butyl-benzoylamino)-phenyl]-imidazo[1,2-a]pyrazin-8-ylamino}-benzoylamino)-acetic acid;

N-(3-{8-[4-(4-Acetyl-piperazin-1-yl)-phenylamino]-imidazo[1,2-a]pyrazin-6-yl}-phenyl)-4-tert-butyl-benzamide;

4-tert-Butyl-N-(3-{8-[4-(3-methyl-piperazin-1-yl)-phenylamino]-imidazo[1,2-a]pyrazin-6-yl}-phenyl)-benzamide;

4-{6-[3-(4-tert-Butyl-benzoylamino)-phenyl]-imidazo[1,2-a]pyrazin-8-ylamino}-benzoic hydroxyl amide;

4-tert-Butyl-N-{3-[8-(4-hydroxymethyl-phenylamino)-imidazo[1,2-a]pyrazin-6-yl]-phenyl}-benzamide;

4-tert-Butyl-N-{3-[8-(4-piperazin-1-ylmethyl-phenylamino)-imidazo[1,2-a]pyrazin-6-yl]-phenyl}-benzamide;

4-{6-[3-(4-Bromo-3-methyl-benzoylamino)-phenyl]-imidazo[1,2-a]pyrazin-8-ylamino}-benzoic acid;

4-tert-Butyl-N-{3-[8-(3-methyl-4-piperazin-1-yl-phenylamino)-imidazo[1,2-a]pyrazin-6-yl]-phenyl}-benzamide;

4-tert-Butyl-N-(3-{8-[4-(3-methyl-piperazin-1-yl)-phenylamino]-imidazo[1,2-a]pyrazin-6-yl}-phenyl)-benzamide;

4-tert-Butyl-N-{3-[8-(3-hydroxymethyl-phenylamino)-imidazo[1,2-a]pyrazin-6-yl]-phenyl}-benzamide;

4-tert-Butyl-N-(3-{8-[3-(3-methyl-piperazin-1-ylmethyl)-phenylamino]-imidazo[1,2-a]pyrazin-6-yl}-phenyl)-benzamide;

4-tert-Butyl-N-(3-{8-[3-(3,5-dimethyl-piperazin-1-ylmethyl)-phenylamino]-imidazo[1,2-a]pyrazin-6-yl}-phenyl)-benzamide;

4-tert-Butyl-N-(3-{8-[4-(3,5-dimethyl-piperazin-1-yl)-phenylamino]-imidazo[1,2-a]pyrazin-6-yl}-phenyl)-benzamide;

4-({6-[3-(4-tert-Butyl-benzoylamino)-phenyl]-imidazo[1,2-a]pyrazin-8-ylamino}-methyl)-benzoic acid;

4-tert-Butyl-N-(3-{8-[4-(3-methyl-piperazin-1-yl)-phenylamino]-imidazo[1,2-a]pyrazin-6-yl}-phenyl)-benzamide;

4-(1-Hydroxy-1-methyl-ethyl)-N-[3-(8-phenylamino-imidazo[1,2-a]pyrazin-6-yl)-phenyl]-benzamide;

(3-{6-[3-(4-tert-Butyl-benzoylamino)-phenyl]-imidazo[1,2-a]pyrazin-8-ylamino}-phenyl)-acetic acid;

N-[3-(8-Phenylamino-imidazo[1,2-a]pyrazin-6-yl)-phenyl]-terephthalamic acid methyl ester;

N-[3-(8-Phenylamino-imidazo[1,2-a]pyrazin-6-yl)-phenyl]-terephthalamic acid;

2-(4-{6-[3-(4-tert-Butyl-benzoylamino)-phenyl]-imidazo[1,2-a]pyrazin-8-ylamino}-phenyl)-propionic acid ethyl ester;

2-(4-{6-[3-(4-tert-Butyl-benzoylamino)-phenyl]-imidazo[1,2-a]pyrazin-8-ylamino}-phenyl)-propionic acid;

4-{6-[3-(4-tert-Butyl-benzoylamino)-phenyl]-imidazo[1,2-a]pyrazin-8-ylamino}-2-methoxy-benzoic acid methyl ester;

4-{6-[3-(4-tert-Butyl-benzoylamino)-phenyl]-imidazo[1,2-a]pyrazin-8-ylamino}-2-methoxy-benzoic acid;

4-tert-Butyl-N-{3-[8-(3-methylcarbamoylmethyl-phenylamino)-imidazo[1,2-a]pyrazin-6-yl]-phenyl}-benzamide;

4-tert-Butyl-N-{3-[8-(4-methylcarbamoylmethyl-phenylamino)-imidazo[1,2-a]pyrazin-6-yl]-phenyl}-benzamide;

4-tert-Butyl-N-{3-[8-(4-cyclooctylcarbamoylmethyl-phenylamino)-imidazo[1,2-a]pyrazin-6-yl]-phenyl}-benzamide;

4-tert-Butyl-N-[3-(8-{4-[(diisopropylcarbamoyl)-methyl]-phenylamino}-imidazo[1,2-a]pyrazin-6-yl)-phenyl]-benzamide;

4-tert-Butyl-N-{3-[8-(4-carbamoylmethyl-phenylamino)-imidazo[1,2-a]pyrazin-6-yl]-phenyl}-benzamide;

3-(4-{6-[3-(4-tert-Butyl-benzoylamino)-phenyl]-imidazo[1,2-a]pyrazin-8-ylamino}-phenyl)-propionic acid;

4-tert-Butyl-N-(3-{8-[4-(2-hydroxy-ethyl)-phenylamino]-imidazo[1,2-a]pyrazin-6-yl}-phenyl)-benzamide;

4-tert-Butyl-N-(3-{8-[4-(2-methylamino-ethyl)-phenylamino]-imidazo[1,2-a]pyrazin-6-yl}-phenyl)-benzamide;

4-tert-Butyl-N-{3-[8-(4-methylaminomethyl-phenylamino)-imidazo[1,2-a]pyrazin-6-yl]-phenyl}-benzamide;

4-{6-[3-(4-tert-Butyl-benzoylamino)-phenyl]-imidazo[1,2-a]pyrazin-8-ylamino}-2-hydroxy-benzoic acid;

4-tert-Butyl-N-(3-{8-[4-(1-hydroxy-1-methyl-ethyl)-phenylamino]-imidazo[1,2-a]pyrazin-6-yl}-phenyl)-benzamide;

4-tert-Butyl-N-(3-{8-[4-(2-hydroxy-ethoxy)-phenylamino]-imidazo[1,2-a]pyrazin-6-yl}-phenyl)-benzamide;

4-tert-Butyl-N-(3-{8-[4-(4-methyl-piperazine-1-carbonyl)-phenylamino]-imidazo[1,2-a]pyrazin-6-yl}-phenyl)-benzamide;

4-tert-Butyl-N-(3-{8-[4-(2-methylamino-ethoxy)-phenylamino]-imidazo[1,2-a]pyrazin-6-yl}-phenyl)-benzamide;

4-tert-Butyl-N-(3-{8-[4-(2-dimethylamino-ethoxy)-phenylamino]-imidazo[1,2-a]pyrazin-6-yl}-phenyl)-benzamide;

4-{6-[3-(4-tert-Butyl-benzoylamino)-phenyl]-imidazo[1,2-a]pyrazin-8-ylamino}-benzoic methoxy amide;

4-{6-[3-(4-tert-Butyl-benzoylamino)-phenyl]-imidazo[1,2-a]pyrazin-8-ylamino}-benzoic hyrdoxyl methyl amide;

4-tert-Butyl-N-(3-{8-[4-([1,4]diazepane-1-carbonyl)-phenylamino]-imidazo[1,2-a]pyrazin-6-yl}-phenyl)-benzamide;

4-tert-Butyl-N-(3-{8-[4-(pyrrolidine-1-carbonyl)-phenylamino]-imidazo[1,2-a]pyrazin-6-yl}-phenyl)-benzamide;

4-tert-Butyl-N-(3-{8-[4-(morpholine-4-carbonyl)-phenylamino]-imidazo[1,2-a]pyrazin-6-yl}-phenyl)-benzamide;

4-tert-Butyl-N-(3-{8-[4-(ethoxyamine-4-carbonyl)-phenylamino]-imidazo[1,2-a]pyrazin-6-yl}-phenyl)-benzamide;

4-tert-Butyl-N-(3-{8-[4-(dimethylamine-4-carbonyl)-phenylamino]-imidazo[1,2-a]pyrazin-6-yl}-phenyl)-benzamide;

4-tert-Butyl-N-(3-{8-[4-(methylethylamine-4-carbonyl)-phenylamino]-imidazo[1,2-a]pyrazin-6-yl}-phenyl)-benzamide;

4-tert-Butyl-N-(3-{8-[4-(3-oxo-piperazine-1-carbonyl)-phenylamino]-imidazo[1,2-a]pyrazin-6-yl}-phenyl)-benzamide;

4-tert-Butyl-N-(3-{8-[N,N,N′-Trimethyl-ethane-1,2-diamine-4-carbonyl)-phenylamino]-imidazo[1,2-a]pyrazin-6-yl}-phenyl)-benzamide;

4-tert-Butyl-N-(3-{8-[4-(4-methyl-[1,4]diazepane-1-carbonyl)-phenylamino]-imidazo[1,2-a]pyrazin-6-yl}-phenyl)-benzamide;

4-tert-Butyl-N-(3-{8-[4-(N-methyl ethoxyamine-4-carbonyl)-phenylamino]-imidazo[1,2-a]pyrazin-6-yl}-phenyl)-benzamide;

4-tert-Butyl-N-(3-{8-[4-(4-ethyl-piperazine-1-carbonyl)-phenylamino]-imidazo[1,2-a]pyrazin-6-yl}-phenyl)-benzamide;

4-{6-[3-(4-tert-Butyl-benzoylamino)-phenyl]-imidazo[1,2-a]pyrazin-8-ylamino}-benzoic benzyl amide;

4-tert-Butyl-N-(3-{8-[4-(4-methyl-piperazin-1-ylmethyl)-phenylamino]-imidazo[1,2-a]pyrazin-6-yl}-phenyl)-benzamide;

4-tert-Butyl-N-(3-{8-[4-(4-ethyl-piperazin-1-ylmethyl)-phenylamino]-imidazo[1,2-a]pyrazin-6-yl}-phenyl)-benzamide;

4-tert-Butyl-N-{3-[8-(4-[1,4]diazepan-1-ylmethyl-phenylamino)-imidazo[1,2-a]pyrazin-6-yl]-phenyl}-benzamide;

4-tert-Butyl-N-(3-{8-[4-(3-methyl-piperazin-1-ylmethyl)-phenylamino]-imidazo[1,2-a]pyrazin-6-yl}-phenyl)-benzamide;

4-tert-Butyl-N-{3-[8-(4-dimethylaminomethyl-phenylamino)-imidazo[1,2-a]pyrazin-6-yl]-phenyl}-benzamide;

4-tert-Butyl-N-[3-(8-{4-[(ethyl-methyl-amino)-methyl]-phenylamino}-imidazo[1,2-a]pyrazin-6-yl)-phenyl]-benzamide;

4-tert-Butyl-N-{3-[8-(4-{[(2-methoxy-ethyl)-methyl-amino]-methyl}-phenylamino)-imidazo[1,2-a]pyrazin-6-yl]-phenyl}-benzamide;

4-tert-Butyl-N-[3-(8-{4-[(2-methoxy-ethylamino)-methyl]-phenylamino}-imidazo[1,2-a]pyrazin-6-yl)-phenyl]-benzamide;

4-tert-Butyl-N-{3-[8-(4-{[(2-dimethylamino-ethyl)-methyl-amino]-methyl}-phenylamino)-imidazo[1,2-a]pyrazin-6-yl]-phenyl}-benzamide;

N-(3-{8-[4-(4-Acetyl-piperazine-1-carbonyl)-phenylamino]-imidazo[1,2-a]pyrazin-6-yl}-phenyl)-4-tert-butyl-benzamide;

4-tert-Butyl-N-{3-[8-(4-{[(2-hydroxy-ethyl)-methyl-amino]-methyl}-phenylamino)-imidazo[1,2-a]pyrazin-6-yl]-phenyl}-benzamide;

4-tert-Butyl-N-[3-(8-{4-[(2-hydroxy-ethylamino)-methyl]-phenylamino}-imidazo[1,2-a]pyrazin-6-yl)-phenyl]-benzamide;

4-tert-Butyl-N-(3-{8-[4-(4-methyl-[1,4]diazepan-1-ylmethyl)-phenylamino]-imidazo[1,2-a]pyrazin-6-yl}-phenyl)-benzamide;

N-[3-(8-{4-[2-(Acetyl-methyl-amino)-ethoxy]-phenylamino}-imidazo[1,2-a]pyrazin-6-yl)-phenyl]-4-tert-butyl-benzamide;

4-(4-{6-[3-(4-tert-Butyl-benzoylamino)-phenyl]-imidazo[1,2-a]pyrazin-8-ylamino}-phenyl)-piperazine-1-carboxylic acid ethyl ester;

N-(3-{8-[4-(4-Acetyl-piperazin-1-ylmethyl)-phenylamino]-imidazo[1,2-a]pyrazin-6-yl}-phenyl)-4-tert-butyl-benzamide;

4-tert-Butyl-N-{3-[8-(4-imidazol-1-ylmethyl-phenylamino)-imidazo[1,2-a]pyrazin-6-yl]-phenyl}-benzamide;

4-tert-Butyl-N-{3-[8-(4-pyrrolidin-1-ylmethyl-phenylamino)-imidazo[1,2-a]pyrazin-6-yl]-phenyl}-benzamide;

N-[3-(8-{4-[(Acetyl-methyl-amino)-methyl]-phenylamino}-imidazo[1,2-a]pyrazin-6-yl)-phenyl]-4-tert-butyl-benzamide;

4-tert-Butyl-N-[3-(8-{4-[(methanesulfonyl-methyl-amino)-methyl]-phenylamino}-imidazo[1,2-a]pyrazin-6-yl)-phenyl]-benzamide;

4-tert-Butyl-N-(3-{8-[4-(3-isopropyl-1-methyl-ureidomethyl)-phenylamino]-imidazo[1,2-a]pyrazin-6-yl}-phenyl)-benzamide;

4-Isopropyl-N-(3-{8-[4-(morpholine-4-carbonyl)-phenylamino]-imidazo[1,2-a]pyrazin-6-yl}-phenyl)-benzamide;

N-{3-[8-(4-{[(2-Hydroxy-ethyl)-methyl-amino]-carbonyl}-phenylamino)-imidazo[1,2-a]pyrazin-6-yl]-phenyl}-4-isopropyl-benzamide;

N-(3-{8-[4-(Morpholine-4-carbonyl)-phenylamino]-imidazo[1,2-a]pyrazin-6-yl}-phenyl)-benzamide;

4-Methyl-N-(3-{8-[4-(morpholine-4-carbonyl)-phenylamino]-imidazo[1,2-a]pyrazin-6-yl}-phenyl)-benzamide;

4-Ethyl-N-(3-{8-[4-(morpholine-4-carbonyl)-phenylamino]-imidazo[1,2-a]pyrazin-6-yl}-phenyl)-benzamide;

4-Fluoro-N-(3-{8-[4-(morpholine-4-carbonyl)-phenylamino]-imidazo[1,2-a]pyrazin-6-yl}-phenyl)-benzamide;

N-(3-{8-[4-(Morpholine-4-carbonyl)-phenylamino]-imidazo[1,2-a]pyrazin-6-yl}-phenyl)-4-trifluoromethyl-benzamide;

4-tert-Butyl-N-(3-{8-[4-(5,6-dihydro-8H-imidazo[1,2-a]pyrazine-7-carbonyl)-phenylamino]-imidazo[1,2-a]pyrazin-6-yl}-phenyl)-benzamide;

4-tert-Butyl-N-(3-{8-[4-(3-oxo-piperazin-1-ylmethyl)-phenylamino]-imidazo[1,2-a]pyrazin-6-yl}-phenyl)-benzamide;

1-(4-{6-[3-(4-tert-Butyl-benzoylamino)-phenyl]-imidazo[1,2-a]pyrazin-8-ylamino}-benzyl)-pyrrolidine-2-carboxylic acid methyl ester;

N-(3-{8-[4-(Morpholine-4-carbonyl)-phenylamino]-imidazo[1,2-a]pyrazin-6-yl}-phenyl)-terephthalamic acid methyl ester;

N-(3-{8-[4-(Morpholine-4-carbonyl)-phenylamino]-imidazo[1,2-a]pyrazin-6-yl}-phenyl)-terephthalamic acid;

N-(3-{8-[4-(4-Acetyl-piperazin-1-yl)-phenylamino]-imidazo[1,2-a]pyrazin-6-yl}-phenyl)-4-ethyl-benzamide;

N-(3-{8-[4-(4-Acetyl-piperazin-1-yl)-phenylamino]-imidazo[1,2-a]pyrazin-6-yl}-phenyl)-4-trifluoromethyl-benzamide;

4-tert-Butyl-N-(3-{8-[4-(3-methyl-5,6-dihydro-8H-[1,2,4]triazolo[4,3-a]pyrazin-7-ylmethyl)-phenylamino]-imidazo[1,2-a]pyrazin-6-yl}-phenyl)-benzamide;

4-tert-Butyl-N-(3-{8-[4-(3-methyl-5,6-dihydro-8H-[1,2,4]triazolo[4,3-a]pyrazine-7-carbonyl)-phenylamino]-imidazo[1,2-a]pyrazin-6-yl}-phenyl)-benzamide;

N-(3-{8-[4-(4-Acetyl-piperazin-1-yl)-phenylamino]-imidazo[1,2-a]pyrazin-6-yl}-phenyl)-4-isopropyl-benzamide;

N-(3-{8-[4-(4-Acetyl-piperazine-1-carbonyl)-phenylamino]-imidazo[1,2-a]pyrazin-6-yl}-phenyl)-4-isopropyl-benzamide;

1-(4-{6-[3-(4-tert-Butyl-benzoylamino)-phenyl]-imidazo[1,2-a]pyrazin-8-ylamino}-benzyl)-pyrrolidine-2-carboxylic acid;

4-Isopropyl-N-(3-{8-[4-(3-methyl-5,6-dihydro-8H-[1,2,4]triazolo[4,3-a]pyrazine-7-carbonyl)-phenylamino]-imidazo[1,2-a]pyrazin-6-yl}-phenyl)-benzamide;

N-(3-{8-[4-(5,6-Dihydro-8H-imidazo[1,2-a]pyrazine-7-carbonyl)-phenylamino]-imidazo[1,2-a]pyrazin-6-yl}-phenyl)-4-isopropyl-benzamide;

4-Isopropyl-N-(3-{8-[4-(3-oxo-piperazine-1-carbonyl)-phenyl amino]-imidazo[1,2-a]pyrazin-6-yl}-phenyl)-benzamide;

4-Isopropyl-N-(3-{8-[4-(4-methyl-piperazine-1-carbonyl)-phenylamino]-imidazo[1,2-a]pyrazin-6-yl}-phenyl)-benzamide;

4-Isopropyl-N-(3-{8-[4-(3-oxo-piperazin-1-ylmethyl)-phenylamino]-imidazo[1,2-a]pyrazin-6-yl}-phenyl)-benzamide;

N-(3-{8-[4-(4-Acetyl-piperazin-1-ylmethyl)-phenylamino]-imidazo[1,2-a]pyrazin-6-yl}-phenyl)-4-isopropyl-benzamide;

N-(3-{8-[4-(Morpholine-4-carbonyl)-phenylamino]-imidazo[1,2-a]pyrazin-6-yl}-phenyl)-isonicotinamide;

N-(3-{8-[4-(Morpholine-4-carbonyl)-phenylamino]-imidazo[1,2-a]pyrazin-6-yl}-phenyl)-nicotinamide;

4-tert-Butyl-N-(3-{8-[4-(2-morpholin-4-yl-2-oxo-ethyl)-phenylamino]-imidazo[1,2-a]pyrazin-6-yl}-phenyl)-benzamide;

4-tert-Butyl-N-(3-{8-[3-(2-morpholin-4-yl-2-oxo-ethyl)-phenylamino]-imidazo[1,2-a]pyrazin-6-yl}-phenyl)-benzamide;

4-Isopropyl-N-{3-[8-(4-morpholin-4-ylmethyl-phenylamino)-imidazo[1,2-a]pyrazin-6-yl]-phenyl}-benzamide;

4-tert-Butyl-N-{3-[8-(4-morpholin-4-ylmethyl-phenylamino)-imidazo[1,2-a]pyrazin-6-yl]-phenyl}-benzamide;

N-(3-{8-[4-(Morpholine-4-carbonyl)-phenylamino]-imidazo[1,2-a]pyrazin-6-yl}-phenyl)-2-phenyl-acetamide;

N-(4-tert-Butyl-phenyl)-3-{8-[4-(morpholine-4-carbonyl)-phenylamino]-imidazo[1,2-a]pyrazin-6-yl}-benzamide;

N-(3-Chloro-benzyl)-3-{8-[4-(morpholine-4-carbonyl)-phenylamino]-imidazo[1,2-a]pyrazin-6-yl}-benzamide;

4-Cyano-N-(3-{8-[4-(morpholine-4-carbonyl)-phenylamino]-imidazo[1,2-a]pyrazin-6-yl}-phenyl)-benzamide;

6-Dimethylamino-N-(3-{8-[4-(morpholine-4-carbonyl)-phenylamino]-imidazo[1,2-a]pyrazin-6-yl}-phenyl)-nicotinamide;

N-Methyl-N′-(3-{8-[4-(morpholine-4-carbonyl)-phenylamino]-imidazo[1,2-a]pyrazin-6-yl}-phenyl)-terephthalamide;

N,N-Dimethyl-N′-(3-{8-[4-(morpholine-4-carbonyl)-phenylamino]-imidazo[1,2-a]pyrazin-6-yl}-phenyl)-terephthalamide;

4-Acetyl-N-(3-{8-[4-(morpholine-4-carbonyl)-phenylamino]-imidazo[1,2-a]pyrazin-6-yl}-phenyl)-benzamide;

4-(1H-Imidazol-2-yl)-N-(3-{8-[4-(morpholine-4-carbonyl)-phenylamino]-imidazo[1,2-a]pyrazin-6-yl}-phenyl)-benzamide;

2-(3-Isopropyl-phenoxy)-N-(3-{8-[4-(morpholine-4-carbonyl)-phenylamino]-imidazo[1,2-a]pyrazin-6-yl}-phenyl)-acetamide;

6-tert-Butyl-N-(3-{8-[4-(morpholine-4-carbonyl)-phenylamino]-imidazo[1,2-a]pyrazin-6-yl}-phenyl)-nicotinamide;

4-(6-{3-[(6-tert-Butyl-pyridine-3-carbonyl)-amino]-phenyl}-imidazo[1,2a]pyrazin-8-ylamino)-benzoic acid;

4-{6-[5-(4-tert-Butyl-benzoylamino)-pyridin-3-yl]-imidazo[1,2-a]pyrazin-8-ylamino}-benzoic acid;

4-tert-Butyl-N-(3-{8-[4-(octahydro-pyrido[1,2-a]pyrazine-2-carbonyl)-phenylamino]-imidazo[1,2-a]pyrazin-6-yl}-phenyl)-benzamide;

4-tert-Butyl-N-[3-(8-{4-[1-methyl-2-(octahydro-pyrido[1,2-a]pyrazin-2-yl)-2-oxo-ethyl]-phenylamino}-imidazo[1,2-a]pyrazin-6-yl)-phenyl]-benzamide;

Thiazole-4-carboxylic acid (3-{8-[4-(morpholine-4-carbonyl)-phenylamino]-imidazo[1,2a]pyrazin-6-yl}-phenyl)-amide;

[1,2,3]Thiadiazole-4-carboxylic acid (3-{8-[4-(morpholine-4-carbonyl)-phenylamino]-imidazo[1,2-a]pyrazin-6-yl}-phenyl)-amide;

Isoxazole-5-carboxylic acid (3-{8-[4-(morpholine-4-carbonyl)-phenylamino]-imidazo[1,2-a]pyrazin-6-yl}-phenyl)-amide;

6-Chloro-N-(3-{8-[4-(morpholine-4-carbonyl)-phenylamino]-imidazo[1,2-a]pyrazin-6-yl}-phenyl)-nicotinamide;

4-Hydroxy-6-methyl-N-(3-{8-[4-(morpholine-4-carbonyl)-phenylamino]-imidazo[1,2-a]pyrazin-6-yl}-phenyl)-nicotinamide;

and pharmaceutically acceptable salts, solvates, crystal forms, chelates, non-covalent complexes, prodrugs, and mixtures thereof.

Assignments (1)

ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 18, 2006

From: CURRIE, KEVIN S.; MITCHELL, SCOTT A.; PIPPIN, DOUGLAS A.I.; DARROW, JAMES W.; QIAN, XIAOBING; VELLECA, MARK; QIAN, DAPENG

To: CGI PHARMACEUTICALS, INC.

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