IP Library Granted Patent US 11,667,611
Granted Patent B2
US 11,667,611 · App. 16/404,481 · Granted Jun 6, 2023

Compositions and methods for inhibition of the JAK pathway

Inventors: Ankush Argade (Foster City, CA); Arvinder Sran (Fremont, CA); David Carroll (San Francisco, CA); Jeffrey Clough (Redwood City, CA); Kin Tso (San Francisco, CA); Somasekhar Bhamidipati (Foster City, CA); Sambaiah Thota (Union City, CA); Rajinder Singh (Belmont, CA); Vanessa Taylor (San Francisco, CA); Hui Li (Santa Clara, CA); Esteban Masuda (Menlo Park, CA)
Assignee: Rigel Pharmaceuticals, Inc.
C07D239/48A61K31/505C07D401/12C07D401/14C07D403/12C07D405/12C07D407/12C07D413/12C07D413/14C07D417/12C07D498/04
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Quick Facts
Patent No.
US 11,667,611
App. No.
16/404,481
Granted
Jun 6, 2023
Kind
B2
Abstract

The invention encompasses compounds having formula I and the compositions and methods using these compounds in the treatment of conditions in which modulation of the JAK pathway or inhibition of JAK kinases, particularly JAK3, are therapeutically useful.

Claims (100)

1. A compound of formula I:

or a solvate or pharmaceutically acceptable salt thereof, wherein:

X is selected from the group consisting of alkyl, substituted alkyl, alkoxy, substituted alkoxy, amino, substituted amino, carboxyl, carboxyl ester, cyano, halo, nitro, alkenyl, substituted alkenyl, alkynyl and substituted alkynyl;

Y is selected from the group consisting of hydrogen, alkyl substituted alkyl, amino, substituted amino, and halo;

R is selected from the group consisting of hydrogen, alkyl, substituted alkyl, alkenyl, substituted alkenyl, alkynyl, substituted alkynyl, cycloalkyl and substituted cycloalkyl;

ring A is selected from the group consisting of aryl, heteroaryl, cycloalkyl, cycloalkenyl and heterocyclic, wherein ring A is not indolyl or benzimidazolyl;

p is 0, 1, 2 or 3;

q is 1, 2 or 3 when ring A is a single ring, or q is 0, 1, 2, 3, 4, or 5 when ring A comprises multiple rings;

each R 2 independently is selected from the group consisting of alkyl, substituted alkyl, alkoxy, —O-(substituted alkyl), —O-(substituted alkenyl), —O-(substituted alkynyl), amino, substituted amino, aryl, substituted aryl, aryloxy, substituted aryloxy, cycloalkyl, substituted cycloalkyl, heteroaryl, substituted heteroaryl, heterocyclic, substituted heterocyclic, heterocyclyloxy, substituted carboxyl, carboxyl ester, hydroxyl, acylamino, aminosufonyl, alkynyl, substituted alkynyl, alkylthio, substituted alkylthio, aminocarbonyl, acyl, oxo, and halo,

wherein alkyl substituents for —O-(substituted alkyl) are selected from alkoxy, substituted alkoxy, acyl, acylamino, acyloxy, amino, substituted amino, aminocarbonyl, aminothiocarbonyl, aminocarbonylamino, aminothiocarbonylamino, aminocarbonyloxy, aminosulfonyl, aminosulfonyloxy, sulfonylamino, aminosulfonylamino, amidino, aryl, substituted aryl, aryloxy, substituted aryloxy, arylthio, substituted arylthio, carboxyl, carboxyl ester, (carboxyl ester)amino, (carboxyl ester)oxy, cyano, cycloalkyl, substituted cycloalkyl, cycloalkyloxy, substituted cycloalkyloxy, cycloalkylthio, substituted cycloalkylthio, cycloalkenyl, substituted cycloalkenyl, cycloalkenyloxy, substituted cycloalkenyloxy, cycloalkenylthio, substituted cycloalkenylthio, guanidino, substituted guanidino, halo, hydroxy, heteroarylthio, substituted heteroarylthio, heterocyclic, substituted heterocyclic, heterocyclyloxy, substituted heterocyclyloxy, heterocyclylthio, substituted heterocyclylthio, nitro, SO 3 H, sulfonyl, sulfonyloxy, thioacyl, thiol, alkylthio, and substituted alkylthio;

each R 3 independently is selected from the group consisting of alkyl, substituted alkyl, cycloalkyl, substituted cycloalkyl, heterocyclic, substituted heterocyclic, halo, and aminosulfonyl; and

R 4 and R 5 independently are selected from the group consisting of hydrogen, alkyl, substituted alkyl, alkenyl, substituted alkenyl, alkynyl, substituted alkynyl, alkoxy, cycloalkyl, substituted cycloalkyl, and acyl; or

R 4 and R 5 together with the nitrogen atom bound thereto, form a heterocyclic or substituted heterocyclic group;

provided that:

if q=0, then X is not bromo;

if ring A is cycloalkyl, then X is not bromo;

if q=2 and each of R 2 is methoxy, halo, trihalomethyl or trihalomethoxy, then R 4 and R 5 are not one hydrogen and one methyl;

if q=2 and R 2 is fluoro and methyl, then R is not substituted alkenyl; and

if ring A is phenyl, q=1 and R 2 is chloro, then R 4 and R 5 are not one hydrogen and one methyl.

2. A method, comprising administering to a subject an effective amount of a compound having a formula I

or a solvate or pharmaceutically acceptable salt thereof, wherein:

X is selected from the group consisting of alkyl, substituted alkyl, alkoxy, substituted alkoxy, amino, substituted amino, carboxyl, carboxyl ester, cyano, halo, nitro, alkenyl, substituted alkenyl, alkynyl and substituted alkynyl;

Y is selected from the group consisting of hydrogen, alkyl substituted alkyl, amino, substituted amino, and halo;

R is selected from the group consisting of hydrogen, alkyl, substituted alkyl, alkenyl, substituted alkenyl, alkynyl, substituted alkynyl, cycloalkyl and substituted cycloalkyl;

ring A is selected from the group consisting of aryl, heteroaryl, cycloalkyl, cycloalkenyl and heterocyclic, wherein ring A is not indolyl or benzimidazolyl;

p is 0, 1, 2 or 3;

q is 1, 2 or 3 when ring A is a single ring, or q is 0, 1, 2, 3, 4, or 5 when ring A comprises multiple rings;

each R 2 independently is selected from the group consisting of alkyl, substituted alkyl, alkoxy, —O-(substituted alkyl), —O-(substituted alkenyl), —O-(substituted alkynyl), amino, substituted amino, aryl, substituted aryl, aryloxy, substituted aryloxy, cycloalkyl, substituted cycloalkyl, heteroaryl, substituted heteroaryl, heterocyclic, substituted heterocyclic, heterocyclyloxy, substituted carboxyl, carboxyl ester, hydroxyl, acylamino, aminosufonyl, alkynyl, substituted alkynyl, alkylthio, substituted alkylthio, aminocarbonyl, acyl, oxo, and halo,

wherein substituents for —O-(substituted alkyl) are selected from alkoxy, substituted alkoxy, acyl, acylamino, acyloxy, amino, substituted amino, aminocarbonyl, aminothiocarbonyl, aminocarbonylamino, aminothiocarbonylamino, aminocarbonyloxy, aminosulfonyl, aminosulfonyloxy, sulfonylamino, aminosulfonylamino, amidino, aryl, substituted aryl, aryloxy, substituted aryloxy, arylthio, substituted arylthio, carboxyl, carboxyl ester, (carboxyl ester)amino, (carboxyl ester)oxy, cyano, cycloalkyl, substituted cycloalkyl, cycloalkyloxy, substituted cycloalkyloxy, cycloalkylthio, substituted cycloalkylthio, cycloalkenyl, substituted cycloalkenyl, cycloalkenyloxy, substituted cycloalkenyloxy, cycloalkenylthio, substituted cycloalkenylthio, guanidino, substituted guanidino, halo, hydroxy, heteroarylthio, substituted heteroarylthio, heterocyclic, substituted heterocyclic, heterocyclyloxy, substituted heterocyclyloxy, heterocyclylthio, substituted heterocyclylthio, nitro, SO 3 H, sulfonyl, sulfonyloxy, thioacyl, thiol, alkylthio, and substituted alkylthio;

each R 3 independently is selected from the group consisting of alkyl, substituted alkyl, cycloalkyl, substituted cycloalkyl, heterocyclic, substituted heterocyclic, halo, and aminosulfonyl; and

R 4 and R 5 independently are selected from the group consisting of hydrogen, alkyl, substituted alkyl, alkenyl, substituted alkenyl, alkynyl, substituted alkynyl, alkoxy, cycloalkyl, substituted cycloalkyl, and acyl; or

R 4 and R 5 together with the nitrogen atom bound thereto, form a heterocyclic or substituted heterocyclic group;

provided that:

if q=0, then X is not bromo;

if ring A is cycloalkyl, then X is not bromo;

if q=2 and each of R 2 is methoxy, halo, trihalomethyl or trihalomethoxy, then R 4 and R 5 are not one hydrogen and one methyl;

if q=2 and R 2 is fluoro and methyl, then R is not substituted alkenyl; and

if ring A is phenyl, q=1 and R 2 is chloro, then R 4 and R 5 are not one hydrogen and one methyl.

3. The compound according to claim 1 , wherein:

ring A is selected from,

and

Q is selected from C, N, O, or S.

4. The compound according to claim 1 wherein ring A is phenyl.

5. The compound according to claim 1 wherein R is H, C 1 -C 6 alkyl, or —CH 2 C(O)OCH 2 CH 3 .

6. The compound according to claim 1 wherein at least one R 2 is alkynyl or alkynyloxy.

7. The compound according to claim 1 wherein at least one R 2 is halo, —OCH 3 , —OH, —CH 3 , —NHC(O)CH 3 , —OCH 2 CCH, —OCH 2 CH 2 CCH, —NHCH 2 CCH, —CH 2 NHC(O)OCH 2 CCH, —SO 2 NHCH 2 CCH, 1H-benzo(d)imidazol-2-yl, 1H-(benzo(d)imidazol-2-yl)methyl, benzonitrile, 1-(phenyl-1H-1,2,3-triazol-4-yl)methoxy, pyridinyl, pyridine-4-yl-methyl, pyridinylmethoxy, pyridine-4-yl-methylthio, pyrimidinyl, pyrimidinylmethoxy, —CCH, or cyanoethyl.

8. The compound according to claim 1 wherein R 2 is at the 3 and/or 4 position of the A ring.

9. The compound according to claim 1 wherein R 2 is C 1 -C 6 alkyl.

10. The compound according to claim 9 wherein R 2 is methyl.

11. A compound of formula I

or a solvate or pharmaceutically acceptable salt thereof, wherein:

X is halo, cyano, C 1 -C 6 alkyl, CF 3 , or NO 2 ;

Y is selected from the group consisting of hydrogen, alkyl substituted alkyl, amino, substituted amino, and halo;

R is selected from the group consisting of hydrogen, alkyl, substituted alkyl, alkenyl, substituted alkenyl, alkynyl, substituted alkynyl, cycloalkyl and substituted cycloalkyl;

ring A is phenyl or 3-oxo-1,4-benzothiazin-6-yl;

p is 0, 1, 2 or 3;

q is 1, 2 or 3 when ring A is phenyl, or q is 0, 1, 2, 3, 4, or 5 when ring A is 3-oxo-1,4-benzothiazin-6-yl;

each R 2 independently is selected from the group consisting of alkyl, substituted alkyl, alkoxy, —O-(substituted alkyl), —O-(substituted alkenyl), —O-(substituted alkynyl), amino, substituted amino, aryl, substituted aryl, aryloxy, substituted aryloxy, cycloalkyl, substituted cycloalkyl, heteroaryl, substituted heteroaryl, heterocyclic, substituted heterocyclic, heterocyclyloxy, substituted carboxyl, carboxyl ester, hydroxyl, acylamino, aminosufonyl, alkynyl, substituted alkynyl, alkylthio, substituted alkylthio, aminocarbonyl, acyl, oxo, and halo,

wherein alkyl substituents for —O-(substituted alkyl) are selected from alkoxy, substituted alkoxy, acyl, acylamino, acyloxy, amino, substituted amino, aminocarbonyl, aminothiocarbonyl, aminocarbonylamino, aminothiocarbonylamino, aminocarbonyloxy, aminosulfonyl, aminosulfonyloxy, sulfonylamino, aminosulfonylamino, amidino, aryl, substituted aryl, aryloxy, substituted aryloxy, arylthio, substituted arylthio, carboxyl, carboxyl ester, (carboxyl ester)amino, (carboxyl ester)oxy, cyano, cycloalkyl, substituted cycloalkyl, cycloalkyloxy, substituted cycloalkyloxy, cycloalkylthio, substituted cycloalkylthio, cycloalkenyl, substituted cycloalkenyl, cycloalkenyloxy, substituted cycloalkenyloxy, cycloalkenylthio, substituted cycloalkenylthio, guanidino, substituted guanidino, halo, hydroxy, heteroarylthio, substituted heteroarylthio, heterocyclic, substituted heterocyclic, heterocyclyloxy, substituted heterocyclyloxy, heterocyclylthio, substituted heterocyclylthio, nitro, SO 3 H, sulfonyl, sulfonyloxy, thioacyl, thiol, alkylthio, and substituted alkylthio;

each R 3 independently is selected from the group consisting of alkyl, substituted alkyl, cycloalkyl, substituted cycloalkyl, heterocyclic, substituted heterocyclic, halo, and aminosulfonyl; and

R 4 and R 5 independently are selected from the group consisting of hydrogen, alkyl, substituted alkyl, alkenyl, substituted alkenyl, alkynyl, substituted alkynyl, alkoxy, cycloalkyl, substituted cycloalkyl, and acyl;

provided that:

if q=0, then X is not bromo;

if q=2 and each of R 2 is methoxy, halo, trihalomethyl or trihalomethoxy, then R 4 and R 5 are not one hydrogen and one methyl;

if q=2 and R 2 is fluoro and methyl, then R is not substituted alkenyl; and

if ring A is phenyl, q=1 and R 2 is chloro, then R 4 and R 5 are not one hydrogen and one methyl.

12. The compound according to claim 1 , wherein:

X is fluoro, cyano or C 1 -C 6 alkyl; and

q is 1 or 2.

13. The compound according to claim 1 , wherein Y is H.

14. The compound according to claim 1 wherein Y is hydrogen and X is fluoro.

15. The compound according to claim 1 wherein at least one R 3 is H or C 1 -C 6 alkyl.

16. The compound according to claim 1 wherein at least one R 3 is methyl, isopropyl, or piperizinyl.

17. A compound of formula I

or a solvate or pharmaceutically acceptable salt thereof, wherein:

X is selected from the group consisting of alkyl, substituted alkyl, alkoxy, substituted alkoxy, amino, substituted amino, carboxyl, carboxyl ester, cyano, halo, nitro, alkenyl, substituted alkenyl, alkynyl and substituted alkynyl;

Y is selected from the group consisting of hydrogen, alkyl substituted alkyl, amino, substituted amino, and halo;

R is selected from the group consisting of hydrogen, alkyl, substituted alkyl, alkenyl, substituted alkenyl, alkynyl, substituted alkynyl, cycloalkyl and substituted cycloalkyl;

ring A is selected from the group consisting of aryl, heteroaryl, cycloalkyl, cycloalkenyl and heterocyclic, wherein ring A is not indolyl or benzimidazolyl;

p is 0, 1, 2 or 3;

q is 1, 2 or 3 when ring A is a single ring, or q is 0, 1, 2, 3, 4, or 5 when ring A comprises multiple rings;

each R 2 independently is selected from the group consisting of alkyl, substituted alkyl, alkoxy, —O-(substituted alkyl), —O-(substituted alkenyl), —O-(substituted alkynyl), amino, substituted amino, aryl, substituted aryl, aryloxy, substituted aryloxy, cycloalkyl, substituted cycloalkyl, heteroaryl, substituted heteroaryl, heterocyclic, substituted heterocyclic, heterocyclyloxy, substituted carboxyl, carboxyl ester, hydroxyl, acylamino, aminosufonyl, alkynyl, substituted alkynyl, alkylthio, substituted alkylthio, aminocarbonyl, acyl, oxo, and halo,

wherein alkyl substituents for —O-(substituted alkyl) are selected from alkoxy, substituted alkoxy, acyl, acylamino, acyloxy, amino, substituted amino, aminocarbonyl, aminothiocarbonyl, aminocarbonylamino, aminothiocarbonylamino, aminocarbonyloxy, aminosulfonyl, aminosulfonyloxy, sulfonylamino, aminosulfonylamino, amidino, aryl, substituted aryl, aryloxy, substituted aryloxy, arylthio, substituted arylthio, carboxyl, carboxyl ester, (carboxyl ester)amino, (carboxyl ester)oxy, cyano, cycloalkyl, substituted cycloalkyl, cycloalkyloxy, substituted cycloalkyloxy, cycloalkylthio, substituted cycloalkylthio, cycloalkenyl, substituted cycloalkenyl, cycloalkenyloxy, substituted cycloalkenyloxy, cycloalkenylthio, substituted cycloalkenylthio, guanidino, substituted guanidino, halo, hydroxy, heteroarylthio, substituted heteroarylthio, heterocyclic, substituted heterocyclic, heterocyclyloxy, substituted heterocyclyloxy, heterocyclylthio, substituted heterocyclylthio, nitro, SO 3 H, sulfonyl, sulfonyloxy, thioacyl, thiol, alkylthio, and substituted alkylthio;

each R 3 independently is selected from the group consisting of alkyl, substituted alkyl, cycloalkyl, substituted cycloalkyl, heterocyclic, substituted heterocyclic, halo, and aminosulfonyl; and

the —SO 2 N(R 4 )(R 5 ) group is

—SO 2 NH 2 , —SO 2 NH(CH 3 ), —SO 2 N(CH 3 ) 2 , —SO 2 NHC(O)Et, —SO 2 NHCH 2 CCH, —SO 2 NH—OC(CH 3 ) 3 , —SO 2 NHC(O)-isopropyl, —SO 2 NHC(O)-n-propyl, —SO 2 NHC(O)-butyl, or —SO 2 NHC(O)-pentyl;

provided that:

if q=0, then X is not bromo;

if ring A is cycloalkyl, then X is not bromo;

if q=2 and each of R 2 is methoxy, halo, trihalomethyl or trihalomethoxy, then R 4 and R 5 are not one hydrogen and one methyl;

if q=2 and R 2 is fluoro and methyl, then R is not substituted alkenyl; and

if ring A is phenyl, q=1 and R 2 is chloro, then R 4 and R 5 are not one hydrogen and one methyl.

18. The compound according to claim 1 wherein ring A is phenyl and R 2 is propynyl or propynyloxy.

19. The compound according to claim 1 , wherein:

R is H;

at least one R 2 is halo, —OCH 3 , —OH, —CH 3 , —NHC(O)CH 3 , —OCH 2 CCH, —OCH 2 CH 2 CCH, —NHCH 2 CCH, —CH 2 NHC(O)OCH 2 CCH, —SO 2 NHCH 2 CCH, 1H-benzo(d)imidazol-2-yl, 1H-(benzo(d)imidazol-2-yl)methyl, benzonitrile, 1-(phenyl-1H-1,2,3-triazol-4-yl)methoxy, pyridinyl, pyridine-4-yl-methyl, pyridinylmethoxy, pyridine-4-yl-methylthio, pyrimidinyl, pyrimidinylmethoxy, —CCH, or cyanoethyl;

X is H, F, —CH 3 or —CF 3 ;

Y is H;

R 3 is H, C 1 -C 6 alkyl or halo; and

—SO 2 N(R 4 )(R 5 ) is —SO 2 NH 2 , SO 2 NH(CH 3 ), —SO 2 N(CH 3 ) 2 , —SO 2 NHC(O)Et, —SO 2 NHCH 2 CCH, —SO 2 NH—OC(CH 3 ) 3 , —SO 2 NHC(O)-isopropyl, —SO 2 NHC(O)-n-propyl, —SO 2 NHC(O)-butyl, or —SO 2 NHC(O)-pentyl.

Assignments (3)
SECURITY INTEREST Recorded May 8, 2026
From: RIGEL PHARMACEUTICALS, INC.
To: MIDCAP FUNDING IV TRUST
Reel/Frame 075576/0880 →
SECURITY INTEREST Recorded Aug 25, 2022
From: RIGEL PHARMACEUTICALS, INC.
To: MIDCAP FINANCIAL TRUST
Reel/Frame 061327/0712 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 4, 2019
From: ARGADE, ANKUSH; SRAN, ARVINDER; CARROLL, DAVID; CLOUGH, JEFFREY; TSO, KIN; BHAMIDIPATI, SOMASEKHAR; THOTA, SAMBAIAH; SINGH, RAJINDER; TAYLOR, VANESSA; LI, HUI; MASUDA, ESTEBAN
To: RIGEL PHARMACEUTICALS, INC.
Reel/Frame 050263/0621 →
Continuity (7)
Continuation 15290918 · Oct 11, 2016
Continuation 12030069 · Feb 12, 2008
Continuation 11678429 · Feb 23, 2007
Continuation In Part 11450901 · Jun 8, 2006
Provisional Application 60776636 · Feb 24, 2006
Provisional Application 60871098 · Dec 20, 2006
Related Publication 20190256476A1 · Aug 22, 2019