Naphthyridine derivatives as inhibitors of hypoxia inducible factor (HIF) hydroxylase
The present disclosure relates to novel compounds, methods, and compositions capable of inhibiting HIF hydroxylase enzyme activity, thereby increasing the stability and/or activity of hypoxia inducible factor (HIF).
1. A method of treating, anemia, the method comprising administering to a patient in need thereof a therapeutically effective amount of a compound represented by Formula Ia:
wherein
q is 0 or 1;
R 1 is selected from the group consisting of hydrogen, cyano, halo, hydroxy, alkoxy, amino, acyloxy, aminoacyl, alkyl, cycloalkyl, cycloalkoxy, aryl, aryloxy, heterocycloalkyl, heteroaryloxy, and heteroaryl;
one of Z 1 or Z 2 is —NR 2 — and the other of Z 1 or Z 2 is —C(O)—;
R 2 is selected from the group consisting of hydrogen, alkyl, cycloalkyl, aryl, heterocycloalkyl, and heteroaryl;
R 3 and R 4 are each independently selected from the group consisting of hydrogen, alkyl, alkoxy, amino, acyloxy, aminoacyl, cycloalkyl, cycloalkoxy, aryl, aryloxy, heterocycloalkyl, heteroaryloxy, and heteroaryl;
— is a single or a double bond;
Y is —NR 6 — or —O—;
n is 1, 2, 3, 4, 5, or 6;
R 5 is selected from the group consisting of hydrogen, acyl, sulfonyl, aminoacyl, oxycarbonyl, alkyl, cycloalkyl, aryl, heterocycloalkyl, and heteroaryl;
R 6 is selected from the group consisting of hydrogen, alkyl, cycloalkyl, aryl, heterocycloalkyl, and heteroaryl;
R 7 and R 8 are each independently selected from the group consisting of hydrogen, alkyl, cycloalkyl, aryl, heterocycloalkyl, and heteroaryl; or R 7 and R 8 together with the carbon atom to which they are attached form a cycloalkyl, or heterocycloalkyl;
W is selected from the group consisting of R 9 , —C(O)OR 9 , —C(O)NR 6 R 9 , —NR 6 C(O)R 9 , —NR 6 C(O)OR 9 , —NR 6 C(O)NR 6 R 9 , —NR 6 S(O) 2 R 9 , —S(O) 2 NR 6 R 9 , —NR 6 R 9 and —OR 9 ; and
R 9 is selected from the group consisting of hydrogen, alkyl, cycloalkyl, aryl, heterocycloalkyl, and heteroaryl; and
further wherein each alkyl, alkoxy, amino, acyloxy, aminoacyl, cycloalkyl, cycloalkoxy, aryl, aryloxy, heterocycloalkyl, heteroaryloxy, and heteroaryl described above for R 1 , R 2 , R 3 , R 4 , R 6 , R 7 , R 8 and R 9 can be optionally substituted with from 1 to 3 R 10 ,
wherein each R 10 is independently selected from the group consisting of alkyl, alkoxy, haloalkyl, haloalkoxy, acyl, acylamino, acyloxy, amino, aminoacyl, aminocarbonylamino, aminothiocarbonylamino, aminocarbonyloxy, aryl, aryloxy, aryloxyaryl, cyano, halogen, hydroxyl, nitro, oxo, thioxo, carboxyl, carboxyl ester, cycloalkyl, thio, alkylthio, arylthio, cycloalkylthio, heteroarylthio, heterocyclicthio, sulfonyl, heteroaryl, heterocyclic, cycloalkoxy, heteroaryloxy, heterocyclyloxy, oxycarbonylamino, oxythiocarbonylamino, —OS(O) 2 -alkyl, —OS(O) 2 -aryl, —OS(O) 2 -heteroaryl, —OS(O) 2 -heterocyclic, —OSO 2 —NR 40 R 40 , —NR 40 S(O) 2 —NR 40 -alkyl, —NR 40 S(O) 2 —NR 40 -aryl, —NR 40 S(O) 2 —NR 40 -heteroaryl, and —NR 40 S(O) 2 —NR 40 -heterocyclic, where each R 40 is independently hydrogen or alkyl; and further wherein each alkyl, alkoxy, aryl, aryloxy, aryloxyaryl, cycloalkyl, alkylthio, arylthio, cycloalkylthio, heteroarylthio, heterocyclicthio, heteroaryl, heterocyclic, cycloalkoxy, heteroaryloxy, or heterocyclyloxy may be additionally substituted with from 1-3 substituents independently alkyl, alkoxy, haloalkyl, haloalkoxy, or halogen;
or a pharmaceutically acceptable salt, single stereoisomer, mixture of stereoisomers, ester, tautomer or prodrug thereof.
2. The method of claim 1 , wherein the compound is represented by Formula IIa:
wherein
R 1 is selected from the group consisting of hydrogen, cyano, halo, hydroxy, alkoxy, amino, acyloxy, aminoacyl, alkyl, cycloalkyl, cycloalkoxy, aryl, aryloxy, heterocycloalkyl, heteroaryloxy, and heteroaryl;
R 2 is selected from the group consisting of hydrogen, alkyl, cycloalkyl, aryl, heterocycloalkyl, and heteroaryl;
— is a single or a double bond;
R 3 and R 4 are each independently selected from the group consisting of hydrogen, alkyl, alkoxy, amino, acyloxy, aminoacyl, cycloalkyl, cycloalkoxy, aryl, aryloxy, heterocycloalkyl, heteroaryloxy, and heteroaryl;
Y is —NR 6 — or —O—;
n is 1, 2, 3, 4, 5, or 6;
R 6 is selected from the group consisting of hydrogen, alkyl, cycloalkyl, aryl, heterocycloalkyl, and heteroaryl;
R 7 and R 8 are each independently selected from the group consisting of hydrogen, alkyl, cycloalkyl, aryl, heterocycloalkyl, and heteroaryl; or R 7 and R 8 together with the carbon atom to which they are attached form a cycloalkyl, or heterocycloalkyl;
W is selected from the group consisting of R 9 , —C(O)OR 9 , —C(O)NR 6 R 9 ,—NR 6 C(O)R 9 , —NR 6 C(O)OR 9 , —NR 6 C(O)NR 6 R 9 ,—NR 6 S(O) 2 R 9 , —S(O) 2 NR 6 R 9 , —NR 6 R 9 and —OR 9 ; and
R 9 is selected from the group consisting of hydrogen, alkyl, cycloalkyl, aryl, heterocycloalkyl, and heteroaryl;
further wherein each alkyl, alkoxy, amino, acyloxy, aminoacyl, cycloalkyl, cycloalkoxy, aryl, aryloxy, heterocycloalkyl, heteroaryloxy, and heteroaryl described above for R 1 , R 2 , R 3 , R 4 , R 6 , R 7 , R 8 and R 9 can be optionally substituted with from 1 to 3 R 10 ,
wherein each R 10 is independently selected from the group consisting of alkyl, alkoxy, haloalkyl, haloalkoxy, acyl, acylamino, acyloxy, amino, aminoacyl, aminocarbonylamino, aminothiocarbonylamino, aminocarbonyloxy, aryl, aryloxy, aryloxyaryl, cyano, halogen, hydroxyl, nitro, oxo, thioxo, carboxyl, carboxyl ester, cycloalkyl, thio, alkylthio, arylthio, cycloalkylthio, heteroarylthio, heterocyclicthio, sulfonyl, heteroaryl, heterocyclic, cycloalkoxy, heteroaryloxy, heterocyclyloxy, oxycarbonylamino, oxythiocarbonylamino, —OS(O) 2 -alkyl, —OS(O) 2 -aryl, —OS(O) 2 -heteroaryl, —OS(O) 2 -heterocyclic, —OSO 2 —NR 40 R 40 ,—NR 40 S(O) 2 —NR -alkyl, —NR 40 S(O) 2 —NR 40 -aryl, —NR 40 S(O) 2 —NR 40 -heteroaryl, and —NR 40 S(O) 2 —NR-heterocyclic, where each R 40 is independently hydrogen or alkyl; and further wherein each alkyl, alkoxy, aryl, aryloxy, aryloxyaryl, cycloalkyl, alkylthio, arylthio, cycloalkylthio, heteroarylthio, heterocyclicthio, heteroaryl, heterocyclic, cycloalkoxy, heteroaryloxy, or heterocyclyloxy may be additionally substituted with from 1-3 substituents independently alkyl, alkoxy, haloalkyl, haloalkoxy, or halogen;
or a pharmaceutically acceptable salt, single stereoisomer, mixture of stereoisomers, ester, tautomer or prodrug thereof.
3. The method of claim 1 , wherein the compound is represented by Formula IIb:
wherein
R 1 is selected from the group consisting of hydrogen, cyano, halo, hydroxy, alkoxy, amino, acyloxy, aminoacyl, alkyl, cycloalkyl, cycloalkoxy, aryl, aryloxy, heterocycloalkyl, heteroaryloxy, and heteroaryl;
R 2 is selected from the group consisting of hydrogen, alkyl, cycloalkyl, aryl, heterocycloalkyl, and heteroaryl;
— is a single or a double bond;
R 3 and R 4 are each independently selected from the group consisting of hydrogen, alkyl, alkoxy, amino, acyloxy, aminoacyl, cycloalkyl, cycloalkoxy, aryl, aryloxy, heterocycloalkyl, heteroaryloxy, and heteroaryl;
Y is —NR 6 — or —O—;
n is 1, 2, 3, 4, 5, or 6;
R 6 is selected from the group consisting of hydrogen, alkyl, cycloalkyl, aryl, heterocycloalkyl, and heteroaryl;
R 7 and R 8 are each independently selected from the group consisting of hydrogen, alkyl, cycloalkyl, aryl, heterocycloalkyl, and heteroaryl; or R 7 and R 8 together with the carbon atom to which they are attached form a cycloalkyl, or heterocycloalkyl;
W is selected from the group consisting of R 9 , —C(O)OR 9 , —C(O)NR 6 R 9 , —NR 6 C(O)R 9 , —NR 6 C(O)OR 9 , —NR 6 C(O)NR 6 R 9 , —NR 6 S(O) 2 R 9 , —S(O) 2 NR 6 R 9 , —NR 6 R 9 and —OR 9 ; and
R 9 is selected from the group consisting of hydrogen, alkyl, cycloalkyl, aryl, heterocycloalkyl, and heteroaryl;
further wherein each alkyl, alkoxy, amino, acyloxy, aminoacyl, cycloalkyl, cycloalkoxy, aryl, aryloxy, heterocycloalkyl, heteroaryloxy, and heteroaryl described above for R 1 , R 2 , R 3 , R 4 , R 6 , R 7 , R 8 and R 9 can be optionally substituted with from 1 to 3 R 10 ,
wherein each R 10 is independently selected from the group consisting of alkyl, alkoxy, haloalkyl, haloalkoxy, acyl, acylamino, acyloxy, amino, aminoacyl, aminocarbonylamino, aminothiocarbonylamino, aminocarbonyloxy, aryl, aryloxy, aryloxyaryl, cyano, halogen, hydroxyl, nitro, oxo, thioxo, carboxyl, carboxyl ester, cycloalkyl, thio, alkylthio, arylthio, cycloalkylthio, heteroarylthio, heterocyclicthio, sulfonyl, heteroaryl, heterocyclic, cycloalkoxy, heteroaryloxy, heterocyclyloxy, oxycarbonylamino, oxythiocarbonylamino, —OS(O) 2 -alkyl, —OS(O) 2 -aryl, —OS(O) 2 -heteroaryl, —OS(O) 2 -heterocyclic, —OSO 2 —NR 40 R 40 , —NR 40 S(O) 2—NR 40 -alkyl, —NR 40 S(O) 2 —NR 40 -aryl, —NR 40 S(O) 2 —NR 40 -heteroaryl, and —NR 40 S(O) 2—NR 40 -heterocyclic, where each R 40 is independently hydrogen or alkyl; and further wherein each alkyl, alkoxy, aryl, aryloxy, aryloxyaryl, cycloalkyl, alkylthio, arylthio, cycloalkylthio, heteroarylthio, heterocyclicthio, heteroaryl, heterocyclic, cycloalkoxy, heteroaryloxy, or heterocyclyloxy may be additionally substituted with from 1-3 substituents independently alkyl, alkoxy, haloalkyl, haloalkoxy, or halogen;
or a pharmaceutically acceptable salt, single stereoisomer, mixture of stereoisomers, ester, tautomer or prodrug thereof.
4. The method of claim 1 , wherein
alk is optionally substituted C 1 -C 6 alkylene;
W 1 is —C(O)OR 9 , —NR 6 C(O)R 9 , —NR 6 C(O)NR 6 R 9 , or —NR 6 S(O) 2 R 9 ; and
each R 6 is independently hydrogen or alkyl.
5. The method of claim 1 , wherein
alk is optionally substituted C 1 -C 6 alkylene;
W 1 is R 9 ; and
R 6 is hydrogen or alkyl.
6. The method of claim 1 , wherein q is 0.
7. The method of claim 1 , wherein R 1 is selected from the group consisting of hydrogen, cyano, optionally substituted alkyl, optionally substituted aryl, and optionally substituted heteroaryl.
8. The method of claim 1 , wherein Z 1 is —NR 2 —, and Z 2 is —C(O)—.
9. The method of claim 1 , wherein Z 1 is, —C(O)—, and Z 2 is —NR 2 —.
10. The method of claim 1 , wherein R 2 is selected from the group consisting of hydrogen, and optionally substituted alkyl.
11. The method of claim 1 , wherein — is a single bond.
12. The method of claim 1 , wherein — is a double bond.
13. The method of claim 1 , wherein R 3 and R 4 are each independently selected from the group consisting of hydrogen, optionally substituted alkyl, optionally substituted cycloalkyl, optionally substituted aryl, optionally substituted heterocycloalkyl, and optionally substituted heteroaryl.
14. The method of claim 1 , wherein Y is —NR 6 —, and R 6 is hydrogen or optionally substituted alkyl.
15. The method of claim 1 , wherein Y is —O—.
16. The method of claim 1 , wherein R 5 and R 6 are each independently selected from the group consisting of hydrogen, and optionally substituted alkyl.
17. The method of claim 1 , wherein R 7 and R 8 are each independently selected from the group consisting of hydrogen, and optionally substituted alkyl; or R 7 and R 8 together with the carbon atom to which they are attached form an optionally substituted cycloalkyl.
18. The method of claim 1 , wherein W is R 9 or —C(O)OR 9 .
19. The method of claim 1 , wherein R 9 is hydrogen.
20. The method of claim 1 , wherein
q is 0;
R 1 is selected from the group consisting of hydrogen, cyano, optionally substituted alkyl, optionally substituted aryl, and optionally substituted heteroaryl;
R 3 and R 4 are each independently selected from the group consisting of hydrogen, optionally substituted alkyl, optionally substituted cycloalkyl, optionally substituted aryl, optionally substituted heterocycloalkyl, and optionally substituted heteroaryl;
R 5 is selected from the group consisting of hydrogen, and optionally substituted alkyl; and
R 6 , when present, is selected from the group consisting of hydrogen, and optionally substituted alkyl.
21. The method of claim 1 , wherein
q is 0;
R 1 is selected from the group consisting of hydrogen, cyano, optionally substituted alkyl, optionally substituted aryl, and optionally substituted heteroaryl;
R 2 is substituted alkyl;
R 3 and R 4 are each independently selected from the group consisting of hydrogen, optionally substituted alkyl, optionally substituted cycloalkyl, optionally substituted aryl, optionally substituted heterocycloalkyl, and optionally substituted heteroaryl;
Y is —O— or —NR 6 —; and
R 5 and R 6 are hydrogen.
22. The method of claim 1 , wherein
q is 0;
R 1 is selected from the group consisting of hydrogen, cyano, optionally substituted alkyl, optionally substituted aryl, and optionally substituted heteroaryl;
R 2 is substituted alkyl;
R 3 and R 4 are each independently selected from the group consisting of hydrogen, optionally substituted alkyl, optionally substituted cycloalkyl, optionally substituted aryl, optionally substituted heterocycloalkyl, and optionally substituted heteroaryl;
Y is —O— or —NR 6 —;
R 5 and R 6 are hydrogen;
R 7 and R 8 are each independently selected from the group consisting of hydrogen, and optionally substituted alkyl; or R 7 and R 8 together with the carbon atom to which they are attached form an optionally substituted cycloalkyl; and
W is R 9 or —C(O)OR 9 .
23. The method of claim 1 , wherein
q is 0;
R 1 is selected from the group consisting of hydrogen, cyano, optionally substituted alkyl, optionally substituted aryl, and optionally substituted heteroaryl;
R 2 is substituted alkyl;
R 3 and R 4 are each independently selected from the group consisting of hydrogen, optionally substituted alkyl, optionally substituted cycloalkyl, optionally substituted aryl, optionally substituted heterocycloalkyl, and optionally substituted heteroaryl;
Y is —O— or —NR 6 —;
R 5 and R 6 are hydrogen;
R 7 and R 8 are each independently selected from the group consisting of hydrogen, optionally substituted alkyl; R 7 and R 8 together with the carbon atom to which they are attached form an optionally substituted cycloalkyl;
W is —C(O)OR 9 ; and
R 9 is hydrogen.
24. A method of treating, anemia, the method comprising administering to a patient in need thereof a therapeutically effective amount of a compound selected from the group consisting of [(1-benzyl-5-hydroxy-2-oxo-1,2,3,4-tetrahydro-[1,7]naphthyridine-6-carbonyl)-amino]-acetic acid; [(1-benzyl-5-hydroxy-3-methyl-2-oxo-1,2-dihydro-[1,7]naphthyridine-6-carbonyl)-amino]-acetic acid; [(1,3-dibenzyl-5-hydroxy-2-oxo-1,2-dihydro-[1,7]naphthyridine-6-carbonyl)-amino]-acetic acid; [(1-benzyl-5-hydroxy-2-oxo-3-phenyl-1,2-dihydro-[1,7]naphthyridine-6-carbonyl)-amino]-acetic acid; [(1-benzyl-5-hydroxy-3,8-dimethyl-2-oxo-1,2-dihydro-[1,7]naphthyridine-6-carbonyl)-amino]-acetic acid; [(1-benzyl-8-cyano-5-hydroxy-3-methyl-2-oxo-1,2-dihydro-[1,7]naphthyridine-6-carbonyl)-amino]-acetic acid; [(1-benzyl-5-hydroxy-2-oxo-1,2-dihydro-[1,7]naphthyridine-6-carbonyl)-amino]-acetic acid; [(1-benzyl-5-hydroxy-8-methyl-2-oxo-1,2,3,4-tetrahydro-[1,7]naphthyridine-6-carbonyl)-amino]-acetic acid; [(1-benzyl-8-cyano-5-hydroxy-2-oxo-1,2,3,4-tetrahydro-[1,7]naphthyridine-6-carbonyl)-amino]-acetic acid; [(1-benzyl-5-hydroxy-3-methyl-2-oxo-8-pyridin-3-yl-1,2-dihydro-[1,7]naphthyridine-6-carbonyl)-amino]-acetic acid; [(1-benzyl-5-hydroxy-2-oxo-3-phenethyl-1,2-dihydro-[1,7]naphthyridine-6-carbonyl)-amino]-acetic acid; [(1-benzyl-5-hydroxy-8-methyl-2-oxo-3-phenyl-1,2-dihydro-[1,7]naphthyridine-6-carbonyl)-amino]-acetic acid; [(1-benzyl-5-hydroxy-2-oxo-3,8-diphenyl-1,2-dihydro-[1,7]naphthyridine-6-carbonyl)-amino]-acetic acid; [(1-benzyl-8-cyano-5-hydroxy-2-oxo-3-phenyl-1,2-dihydro-[1,7]naphthyridine-6-carbonyl)-amino]-acetic acid; 3-[(1-benzyl-8-cyano-5-hydroxy-2-oxo-3-phenyl-1,2-dihydro-[1,7]naphthyridine-6-carbonyl)-amino]-propionic acid; [(1-benzyl-5-hydroxy-2-oxo-3-phenyl-8-pyridin-3-yl-1,2-dihydro-[1,7]naphthyridine-6-carbonyl)-amino]-acetic acid; [(1,3-dibenzyl-8-cyano-5-hydroxy-2-oxo-1,2-dihydro-[1,7]naphthyridine-6-carbonyl)-amino]-acetic acid; 3-[(1,3-dibenzyl-8-cyano-5-hydroxy-2-oxo-1,2-dihydro-[1,7]naphthyridine-6-carbonyl)-amino]-propionic acid; [(1,3-dibenzyl-5-hydroxy-8-methyl-2-oxo-1,2-dihydro-[1,7]naphthyridine-6-carbonyl)-amino]-acetic acid; 3-[(1,3-dibenzyl-5-hydroxy-8-methyl-2-oxo-1,2-dihydro-[1,7]naphthyridine-6-carbonyl)-amino]-propionic acid; [(1,3-dibenzyl-5-hydroxy-2-oxo-8-pyridin-3-yl-1,2-dihydro-[1,7]naphthyridine-6-carbonyl)-amino]-acetic acid; 3-[(1,3-dibenzyl-5-hydroxy-2-oxo-8-pyridin-3-yl-1,2-dihydro-[1,7]naphthyridine-6-carbonyl)-amino]-propionic acid; 4-[(1-benzyl-8-cyano-5-hydroxy-2-oxo-3-phenyl-1,2-dihydro-[1,7]naphthyridine-6-carbonyl)-amino]-butyric acid; 5-[(1-benzyl-8-cyano-5-hydroxy-2-oxo-3-phenyl-1,2-dihydro-[1,7]naphthyridine-6-carbonyl)-amino]-pentanoic acid; 3-[(1-benzyl-8-cyano-5-hydroxy-2-oxo-3-phenyl-1,2-dihydro-[1,7]naphthyridine-6-carbonyl)-amino]-2,2-dimethyl-propionic acid; [(7-benzyl-4-hydroxy-8-oxo-7,8-dihydro-[2,7]naphthyridine-3-carbonyl)-amino]-acetic acid; 3-[(7-benzyl-4-hydroxy-8-oxo-7,8-dihydro-[2,7]naphthyridine-3-carbonyl)-amino]-propionic acid; 3-[(7-benzyl-4-hydroxy-8-oxo-7,8-dihydro-[2,7]naphthyridine-3-carbonyl)-amino]-2,2-dimethyl-propionic acid; 4-[(7-benzyl-4-hydroxy-8-oxo-7,8-dihydro-[2,7]naphthyridine-3-carbonyl)-amino]-butyric acid; 5-[(7-benzyl-4-hydroxy-8-oxo-7,8-dihydro-[2,7]naphthyridine-3-carbonyl)-amino]-pentanoic acid; 7-benzyl-4-hydroxy-8-oxo-7,8-dihydro-[2,7]naphthyridine-3-carboxylic acid (pyridin-4-ylmethyl)-amide; 7-benzyl-4-hydroxy-8-oxo-7,8-dihydro-[2,7]naphthyridine-3-carboxylic acid methylamide; 7-benzyl-4-hydroxy-8-oxo-7,8-dihydro-[2,7]naphthyridine-3-carboxylic acid; 7-benzyl-4-hydroxy-8-oxo-7,8-dihydro-[2,7]naphthyridine-3-carboxylic acid dimethylamide; 7-benzyl-4-hydroxy-8-oxo-7,8-dihydro-[2,7]naphthyridine-3-carboxylic acid amide; 7-benzyl-4-hydroxy-8-oxo-7,8-dihydro-[2,7]naphthyridine-3-carboxylic acid propylamide; 7-benzyl-4-hydroxy-8-oxo-7,8-dihydro-[2,7]naphthyridine-3-carboxylic acid cyclopropylamide; 1-benzyl-8-cyano-5-hydroxy-2-oxo-3-phenyl-1,2-dihydro-[1,7]naphthyridine-6-carboxylic acid (pyridin-4-ylmethyl)-amide; (R)-2-[(1-benzyl-8-cyano-5-hydroxy-2-oxo-3-phenyl-1,2-dihydro-[1,7]naphthyridine-6-carbonyl)-amino]-3-phenyl-propionic acid; (S)-2-[(1-benzyl-8-cyano-5-hydroxy-2-oxo-3-phenyl-1,2-dihydro-[1,7]naphthyridine-6-carbonyl)-amino]-3-phenyl-propionic acid; [(7-benzyl-4-hydroxy-1-methyl-8-oxo-7,8-dihydro-[2,7]naphthyridine-3-carbonyl)-amino]-acetic acid; {[7-benzyl-1-(5-fluoro-pyridin-3-yl)-4-hydroxy-8-oxo-7,8-dihydro-[2,7]naphthyridine-3-carbonyl]-amino}-acetic acid; [(7-benzyl-4-hydroxy-8-oxo-1-phenyl-7,8-dihydro-[2,7]naphthyridine-3-carbonyl)-amino]-acetic acid; [(7-benzyl-1-cyano-4-hydroxy-8-oxo-7,8-dihydro-[2,7]naphthyridine-3-carbonyl)-amino]-acetic acid; 7-benzyl-1-cyano-4-hydroxy-8-oxo-7,8-dihydro-[2,7]naphthyridine-3-carboxylic acid (pyridin-4-ylmethyl)-amide; 3-[(7-benzyl-1-cyano-4-hydroxy-8-oxo-7,8-dihydro-[2,7]naphthyridine-3-carbonyl)-amino]-propionic acid; 3-[(7-benzyl-1-cyano-4-hydroxy-8-oxo-7,8-dihydro-[2,7]naphthyridine-3-carbonyl)-amino]-2,2-dimethyl-propionic acid; (R)-2-[(7-benzyl-1-cyano-4-hydroxy-8-oxo-7,8-dihydro-[2,7]naphthyridine-3-carbonyl)-amino]-3-phenyl-propionic acid; 5-[(7-benzyl-1-cyano-4-hydroxy-8-oxo-7,8-dihydro-[2,7]naphthyridine-3-carbonyl)-amino]-pentanoic acid; (S)-2-[(7-benzyl-1-cyano-4-hydroxy-8-oxo-7,8-dihydro-[2,7]naphthyridine-3-carbonyl)-amino]-3-phenyl-propionic acid; (S)-2-[(7-benzyl-1-cyano-4-hydroxy-8-oxo-7,8-dihydro-[2,7]naphthyridine-3-carbonyl)-amino]-propionic acid; (R)-2-[(7-benzyl-1-cyano-4-hydroxy-8-oxo-7,8-dihydro-[2,7]naphthyridine-3-carbonyl)-amino]-propionic acid; 7-benzyl-1-cyano-4-hydroxy-8-oxo-7,8-dihydro-[2,7]naphthyridine-3-carboxylic acid (2-morpholin-4-yl-ethyl)-amide; 7-benzyl-1-cyano-4-hydroxy-8-oxo-7,8-dihydro-[2,7]naphthyridine-3-carboxylic acid (pyridazin-4-ylmethyl)-amide; {2-[(7-benzyl-1-cyano-4-hydroxy-8-oxo-7,8-dihydro-[2,7]naphthyridine-3-carbonyl)-amino]-ethoxy}-acetic acid; 1-{[(7-benzyl-1-cyano-4-hydroxy-8-oxo-7,8-dihydro-[2,7]naphthyridine-3-carbonyl)-amino]-methyl}-cyclobutanecarboxylic acid; 7-(2,4-dimethoxy-benzyl)-4-hydroxy-8-oxo-7,8-dihydro-[2,7]naphthyridine-3-carboxylic acid methylamide; {[7-(2,4-dimethoxy-benzyl)-4-hydroxy-8-oxo-7,8-dihydro-[2,7]naphthyridine-3-carbonyl]-amino}-acetic acid; 3-{[7-(2,4-dimethoxy-benzyl)-4-hydroxy-8-oxo-7,8-dihydro-[2,7]naphthyridine-3-carbonyl]-amino}-propionic acid; 7-(2,4-dimethoxy-benzyl)-4-hydroxy-8-oxo-5,6,7,8-tetrahydro-[2,7]naphthyridine-3-carboxylic acid methylamide; {[7-(2,4-dimethoxy-benzyl)-4-hydroxy-8-oxo-5,6,7,8-tetrahydro-[2,7]naphthyridine-3-carbonyl]-amino}-acetic acid; 3-{[7-(2,4-dimethoxy-benzyl)-4-hydroxy-8-oxo-5,6,7,8-tetrahydro-[2,7]naphthyridine-3-carbonyl]-amino}-propionic acid; 7-benzyl-1-cyano-4-hydroxy-8-oxo-7,8-dihydro-[2,7]naphthyridine-3-carboxylic acid (3-propylcarbamoyl-propyl)-amide; 3-[(4-hydroxy-8-oxo-7,8-dihydro-[2,7]naphthyridine-3-carbonyl)-amino]-propionic acid; 7-(2,4-dimethoxy-benzyl)-4-hydroxy-8-oxo-7,8-dihydro-[2,7]naphthyridine-3-carboxylic acid phenethyl-amide; 7-(2,4-dimethoxy-benzyl)-4-hydroxy-8-oxo-7,8-dihydro-[2,7]naphthyridine-3-carboxylic acid (2-methoxy-ethyl)-amide; 7-(2,4-dimethoxy-benzyl)-4-hydroxy-8-oxo-7,8-dihydro-[2,7]naphthyridine-3-carboxylic acid 4-fluoro-benzylamide; 1-benzyl-5-hydroxy-2-oxo-3-phenyl-1,2-dihydro-[1,7]naphthyridine-6-carboxylic acid methylamide; 3-[(1-benzyl-5-hydroxy-2-oxo-3-phenyl-1,2-dihydro-[1,7]naphthyridine-6-carbonyl)-amino]-propionic acid; {2-[(7-benzyl-4-hydroxy-8-oxo-7,8-dihydro-[2,7]naphthyridine-3-carbonyl)-amino]-ethoxy}-acetic acid; 7-benzyl-4-hydroxy-8-oxo-7,8-dihydro-[2,7]naphthyridine-3-carboxylic acid (1H-tetrazol-5-ylmethyl)-amide; 3-{[7-benzyl-1-(5-fluoro-pyridin-3-yl)-4-hydroxy-8-oxo-7,8-dihydro-[2,7]naphthyridine-3-carbonyl]-amino}-propionic acid; 3-{[7-benzyl-1-(5-fluoro-pyridin-3-yl)-4-hydroxy-8-oxo-7,8-dihydro-[2,7]naphthyridine-3-carbonyl]-amino}-2,2-dimethyl-propionic acid; 7-benzyl-4-hydroxy-8-oxo-7,8-dihydro-[2,7]naphthyridine-3-carboxylic acid [2-(3-isopropyl-ureido)-ethyl]-amide; 7-benzyl-4-hydroxy-8-oxo-7,8-dihydro-[2,7]naphthyridine-3-carboxylic acid (2-sulfamoyl-ethyl)-amide; 7-benzyl-4-hydroxy-8-oxo-7,8-dihydro-[2,7]naphthyridine-3-carboxylic acid [2-(2,2,2-trifluoro-acetylamino)-ethyl]-amide; 7-benzyl-4-hydroxy-8-oxo-7,8-dihydro-[2,7]naphthyridine-3-carboxylic acid (2-acetylamino-ethyl)-amide; 7-benzyl-4-hydroxy-8-oxo-7,8-dihydro-[2,7]naphthyridine-3-carboxylic acid {2-[methyl-(2,2,2-trifluoro-acetyl)-amino]-ethyl}-amide; 7-benzyl-4-hydroxy-8-oxo-7,8-dihydro-[2,7]naphthyridine-3-carboxylic acid [2-(3-isopropyl-1-methyl-ureido)-ethyl]-amide; {2-[(7-benzyl-4-hydroxy-8-oxo-7,8-dihydro-[2,7]naphthyridine-3-carbonyl)-amino]-ethyl}-methyl-carbamic acid methyl ester; 7-benzyl-4-hydroxy-8-oxo-7,8-dihydro-[2,7]naphthyridine-3-carboxylic acid [2-(methanesulfonyl-methyl-amino)-ethyl]-amide; 7-benzyl-4-hydroxy-8-oxo-7,8-dihydro-[2,7]naphthyridine-3-carboxylic acid (2-methanesulfonylamino-ethyl)-amide; 7-benzyl-4-hydroxy-8-oxo-7,8-dihydro-[2,7]naphthyridine-3-carboxylic acid [3-(2,2,2-trifluoro-acetylamino)-propyl]-amide; 7-benzyl-4-hydroxy-8-oxo-7,8-dihydro-[2,7]naphthyridine-3-carboxylic acid [3-(3-isopropyl-ureido)-propyl]-amide; 7-benzyl-4-hydroxy-8-oxo-7,8-dihydro-[2,7]naphthyridine-3-carboxylic acid (3-ureido-propyl)-amide; 1-benzyl-5-hydroxy-2-oxo-3-phenyl-1,2-dihydro-[1,7]naphthyridine-6-carboxylic acid (2-acetylamino-ethyl)-amide; 1-benzyl-5-hydroxy-2-oxo-3-phenyl-1,2-dihydro-[1,7]naphthyridine-6-carboxylic acid [2-(methanesulfonyl-methyl-amino)-ethyl]-amide; 1-benzyl-5-hydroxy-2-oxo-3-phenyl-1,2-dihydro-[1,7]naphthyridine-6-carboxylic acid [2-(2,2,2-trifluoro-acetylamino)-ethyl]-amide; 1-benzyl-5-hydroxy-2-oxo-3-phenyl-1,2-dihydro-[1,7]naphthyridine-6-carboxylic acid [2-(3-ethyl-ureido)-ethyl]-amide; 1-benzyl-5-hydroxy-2-oxo-3-phenyl-1,2-dihydro-[1,7]naphthyridine-6-carboxylic acid (1H-tetrazol-5-ylmethyl)-amide; 3-[(1-benzyl-5-hydroxy-2-oxo-3-phenyl-1,2-dihydro-[1,7]naphthyridine-6-carbonyl)-amino]-2,2-dimethyl-propionic acid; 7-benzyl-4-hydroxy-8-oxo-7,8-dihydro-[2,7]naphthyridine-3-carboxylic acid [2-(formyl-methyl-amino)-ethyl]-amide; 7-benzyl-4-hydroxy-8-oxo-7,8-dihydro-[2,7]naphthyridine-3-carboxylic acid [2-(acetyl-methyl-amino)-ethyl]-amide; 1-benzyl-5-hydroxy-2-oxo-3-phenyl-1,2-dihydro-[1,7]naphthyridine-6-carboxylic acid (2-formylamino-ethyl)-amide; 3-[(1-benzyl-5-hydroxy-2-oxo-3-phenyl-8-pyridin-3-yl-1,2-dihydro-[1,7]naphthyridine-6-carbonyl)-amino]-propionic acid; 3-[(1-benzyl-5-hydroxy-2-oxo-3,8-diphenyl-1,2-dihydro-[1,7]naphthyridine-6-carbonyl)-amino]-propionic acid; 3-[(1-benzyl-5-hydroxy-8-methyl-2-oxo-3-phenyl-1,2-dihydro-[1,7]naphthyridine-6-carbonyl)-amino]-propionic acid; 3-[(1-benzyl-5-hydroxy-2-oxo-3-phenyl-1,2,3,4-tetrahydro-[1,7]naphthyridine-6-carbonyl)-amino]-propionic acid; 3-[(1-benzyl-5-hydroxy-2-oxo-1,2-dihydro-[1,7]naphthyridine-6-carbonyl)-amino]-propionic acid; 3-[(1-benzyl-5-hydroxy-2-oxo-3-phenethyl-1,2-dihydro-[1,7]naphthyridine-6-carbonyl)-amino]-propionic acid; 3-[(1-benzyl-5-hydroxy-2-oxo-3-pyridin-3-yl-1,2-dihydro-[1,7]naphthyridine-6-carbonyl)-amino]-propionic acid; 3-[(1-benzyl-5-hydroxy-2-oxo-3-pyridin-2-yl-1,2-dihydro-[1,7]naphthyridine-6-carbonyl)-amino]-propionic acid; 4-[(1-benzyl-5-hydroxy-2-oxo-3-phenyl-1,2-dihydro-[1,7]naphthyridine-6-carbonyl)-amino]-butyric acid; 3-[(1-benzyl-5-hydroxy-3-methyl-2-oxo-1,2-dihydro-[1,7]naphthyridine-6-carbonyl)-amino]-propionic acid; 3-[(1-benzyl-5-hydroxy-2-oxo-3-thiophen-2-yl-1,2-dihydro-[1,7]naphthyridine-6-carbonyl)-amino]-propionic acid; 7-benzyl-1-cyano-4-hydroxy-8-oxo-7,8-dihydro-[2,7]naphthyridine-3-carboxylic acid methylamide; 7-benzyl-1-cyano-4-hydroxy-8-oxo-7,8-dihydro-[2,7]naphthyridine-3-carboxylic acid cyclopropylamide; 1-benzyl-8-cyano-5-hydroxy-2-oxo-3-phenyl-1,2-dihydro-[1,7]naphthyridine-6-carboxylic acid methylamide; 3-[(1-benzyl-5-hydroxy-2-oxo-3-pyridin-4-yl-1,2-dihydro-[1,7]naphthyridine-6-carbonyl)-amino]-propionic acid; 1-benzyl-5-hydroxy-2-oxo-3-phenyl-1,2-dihydro-[1,7]naphthyridine-6-carboxylic acid (2-methanesulfonylamino-ethyl)-amide; 1-benzyl-8-cyano-5-hydroxy-2-oxo-3-phenyl-1,2-dihydro-[1,7]naphthyridine-6-carboxylic acid [2-(methanesulfonyl-methyl-amino)-ethyl]-amide; 1-benzyl-5-hydroxy-8-methyl-2-oxo-3-phenyl-1,2-dihydro-[1,7]naphthyridine-6-carboxylic acid [2-(methanesulfonyl-methyl-amino)-ethyl]-amide; 1-benzyl-5-hydroxy-2-oxo-3,8-diphenyl-1,2-dihydro-[1,7]naphthyridine-6-carboxylic acid [2-(methanesulfonyl-methyl-amino)-ethyl]-amide; 1-benzyl-5-hydroxy-2-oxo-3-phenyl-8-pyridin-3-yl-1,2-dihydro-[1,7]naphthyridine-6-carboxylic acid [2-(methanesulfonyl-methyl-amino)-ethyl]-amide; 3-[(5-hydroxy-2-oxo-1-phenethyl-3-phenyl-1,2-dihydro-[1,7]naphthyridine-6-carbonyl)-amino]-propionic acid; 3-[(5-hydroxy-2-oxo-1,3-diphenyl-1,2-dihydro-[1,7]naphthyridine-6-carbonyl)-amino]-propionic acid; 3-[(3-benzyl-5-hydroxy-2-oxo-1-phenyl-1,2-dihydro-[1,7]naphthyridine-6-carbonyl)-amino]-propionic acid; 3-[(5-hydroxy-1-methyl-2-oxo-3-phenyl-1,2-dihydro-[1,7]naphthyridine-6-carbonyl)-amino]-propionic acid; 3-{[1-benzyl-3-(4-cyano-phenyl)-5-hydroxy-2-oxo-1,2-dihydro-[1,7]naphthyridine-6-carbonyl]-amino}-propionic acid; 3-{[1-benzyl-5-hydroxy-3-(4-methoxy-phenyl)-2-oxo-1,2-dihydro-[1,7]naphthyridine-6-carbonyl]-amino}-propionic acid; 3-[(1-benzyl-5-hydroxy-2-oxo-3-thiazol-2-yl-1,2-dihydro-[1,7]naphthyridine-6-carbonyl)-amino]-propionic acid; (R)-3-[(1-benzyl-5-hydroxy-2-oxo-3-phenyl-1,2-dihydro-[1,7]naphthyridine-6-carbonyl)-amino]-butyric acid; 3-{[5-hydroxy-1-(4-methoxy-benzyl)-2-oxo-3-phenyl-1,2-dihydro-[1,7]naphthyridine-6-carbonyl]-amino}-propionic acid; 3-{[1-(4-cyano-benzyl)-5-hydroxy-2-oxo-3-phenyl-1,2-dihydro-[1,7]naphthyridine-6-carbonyl]-amino}-propionic acid; 3-[(1-benzyl-5-hydroxy-2-oxo-3-pyrazin-2-yl-1,2-dihydro-[1,7]naphthyridine-6-carbonyl)-amino]-propionic acid; 3-{[1-benzyl-5-hydroxy-3-(4-methanesulfonyl-phenyl)-2-oxo-1,2-dihydro-[1,7]naphthyridine-6-carbonyl]-amino}-propionic acid; 3-{[1-benzyl-5-hydroxy-2-oxo-3-(3-trifluoromethyl-phenyl)-1,2-dihydro-[1,7]naphthyridine-6-carbonyl]-amino}-propionic acid; 3-{[1-benzyl-5-hydroxy-3-(4-morpholin-4-yl-phenyl)-2-oxo-1,2-dihydro-[1,7]naphthyridine-6-carbonyl]-amino}-propionic acid; 3-[(3-benzo[1,2,5]oxadiazol-5-yl-1-benzyl-5-hydroxy-2-oxo-1,2-dihydro-[1,7]naphthyridine-6-carbonyl)-amino]-propionic acid; 3-{[1-benzyl-3-(5-fluoro-2-methoxy-phenyl)-5-hydroxy-2-oxo-1,2-dihydro-[1,7]naphthyridine-6-carbonyl]-amino}-propionic acid; 3-{[1-benzyl-5-hydroxy-2-oxo-3-(4-trifluoromethoxy-phenyl)-1,2-dihydro-[1,7]naphthyridine-6-carbonyl]-amino}-propionic acid; (R)-2-[(1-benzyl-5-hydroxy-2-oxo-3-phenyl-1,2-dihydro-[1,7]naphthyridine-6-carbonyl)-amino]-3-phenyl-propionic acid; 3-{[1-benzyl-5-hydroxy-3-(1-methyl-1h-pyrazol-4-yl)-2-oxo-1,2-dihydro-[1,7]naphthyridine-6-carbonyl]-amino}-propionic acid; 3-[(1-benzyl-5-hydroxy-2-oxo-3-pyrimidin-5-yl-1,2-dihydro-[1,7]naphthyridine-6-carbonyl)-amino]-propionic acid; 3-{[1-benzyl-3-(2-dimethylamino-pyrimidin-5-yl)-5-hydroxy-2-oxo-1,2-dihydro-[1,7]naphthyridine-6-carbonyl]-amino}-propionic acid; 3-[(1-cyclohexylmethyl-5-hydroxy-2-oxo-3-phenyl-1,2-dihydro-[1,7]naphthyridine-6-carbonyl)-amino]-propionic acid; 3-{[5-hydroxy-2-oxo-3-phenyl-1-(tetrahydro-pyran-4-ylmethyl)-1,2-dihydro-[1,7]naphthyridine-6-carbonyl]-amino}-propionic acid; 3-[(5-hydroxy-2-oxo-3-phenyl-1-thiazol-2-ylmethyl-1,2-dihydro-[1,7]naphthyridine-6-carbonyl)-amino]-propionic acid; 3-[(1-benzyl-5-hydroxy-2-oxo-3-phenyl-8-pyrimidin-5-yl-1,2-dihydro-[1,7]naphthyridine-6-carbonyl)-amino]-propionic acid; 3-[(1-benzyl-5-hydroxy-2-oxo-3-phenyl-8-pyrazin-2-yl-1,2-dihydro-[1,7]naphthyridine-6-carbonyl)-amino]-propionic acid; 5-[(1-benzyl-5-hydroxy-2-oxo-3-phenyl-1,2-dihydro-[1,7]naphthyridine-6-carbonyl)-amino]-pentanoic acid; 4-[(1-benzyl-5-hydroxy-2-oxo-3-phenyl-8-pyridin-3-yl-1,2-dihydro-[1,7]naphthyridine-6-carbonyl)-amino]-butyric acid; 5-[(1-benzyl-5-hydroxy-2-oxo-3-phenyl-8-pyridin-3-yl-1,2-dihydro-[1,7]naphthyridine-6-carbonyl)-amino]-pentanoic acid; 3-[(5-hydroxy-2-oxo-1,3-diphenyl-8-pyridin-3-yl-1,2-dihydro-[1,7]naphthyridine-6-carbonyl)-amino]-propionic acid; 3-[(5-hydroxy-1-methyl-2-oxo-3-phenyl-8-pyridin-3-yl-1,2-dihydro-[1,7]naphthyridine-6-carbonyl)-amino]-propionic acid; 3-[(5-hydroxy-2-oxo-1-phenethyl-3-phenyl-8-pyridin-3-yl-1,2-dihydro-[1,7]naphthyridine-6-carbonyl)-amino]-propionic acid; 3-[(1-benzyl-5-hydroxy-2-oxo-3-phenyl-8-pyridin-4-yl-1,2-dihydro-[1,7]naphthyridine-6-carbonyl)-amino]-propionic acid; 3-[(1-benzyl-5-hydroxy-2-oxo-3,8-di-pyridin-3-yl-1,2-dihydro-[1,7]naphthyridine-6-carbonyl)-amino]-propionic acid; (R)-3-{[5-hydroxy-2-oxo-3-phenyl-1-(1-phenyl-ethyl)-1,2-dihydro-[1,7]naphthyridine-6-carbonyl]-amino}-propionic acid; (R)-4-{[5-hydroxy-2-oxo-3-phenyl-1-(1-phenyl-ethyl)-1,2-dihydro-[1,7]naphthyridine-6-carbonyl]-amino}-butyric acid; 3-{[1-benzyl-5-hydroxy-8-(5-methoxy-pyridin-3-yl)-2-oxo-3-phenyl-1,2-dihydro-[1,7]naphthyridine-6-carbonyl]-amino}-propionic acid; 3-{[1-benzyl-8-(5-chloro-pyridin-3-yl)-5-hydroxy-2-oxo-3-phenyl-1,2-dihydro-[1,7]naphthyridine-6-carbonyl]-amino}-propionic acid; (S)-3-{[5-hydroxy-2-oxo-3-phenyl-1-(1-phenyl-ethyl)-1,2-dihydro-[1,7]naphthyridine-6-carbonyl]-amino}-propionic acid; (S)-4-{[5-hydroxy-2-oxo-3-phenyl-1-(1-phenyl-ethyl)-1,2-dihydro-[1,7]naphthyridine-6-carbonyl]-amino}-butyric acid; (S)-3-{[5-hydroxy-2-oxo-3-phenyl-1-(1-phenyl-ethyl)-8-pyridin-3-yl-1,2-dihydro-[1,7]naphthyridine-6-carbonyl]-amino}-propionic acid; (R)-3-{[5-hydroxy-2-oxo-3-phenyl-1-(1-phenyl-ethyl)-8-pyridin-3-yl-1,2-dihydro-[1,7]naphthyridine-6-carbonyl]-amino}-propionic acid; 3-{[1-benzyl-8-(5-fluoro-pyridin-3-yl)-5-hydroxy-2-oxo-3-phenyl-1,2-dihydro-[1,7]naphthyridine-6-carbonyl]-amino}-propionic acid; 3-{[1-benzyl-5-hydroxy-8-(2-methyl-pyridin-3-yl)-2-oxo-3-phenyl-1,2-dihydro-[1,7]naphthyridine-6-carbonyl]-amino}-propionic acid; 3-{[1-benzyl-5-hydroxy-8-(6-methyl-pyridin-3-yl)-2-oxo-3-phenyl-1,2-dihydro-[1,7]naphthyridine-6-carbonyl]-amino}-propionic acid; 3-{[1-benzyl-5-hydroxy-2-oxo-3-phenyl-8-(6-trifluoromethyl-pyridin-3-yl)-1,2-dihydro-[1,7]naphthyridine-6-carbonyl]-amino}-propionic acid; 3-{[1-benzyl-5-hydroxy-8-(6-methoxy-pyridin-3-yl)-2-oxo-3-phenyl-1,2-dihydro-[1,7]naphthyridine-6-carbonyl]-amino}-propionic acid; 3-{[5-hydroxy-2-oxo-3-phenyl-8-pyridin-3-yl-1-(tetrahydro-pyran-4-ylmethyl)-1,2-dihydro-[1,7]naphthyridine-6-carbonyl]-amino}-propionic acid; 3-[(1-cyclohexylmethyl-5-hydroxy-2-oxo-3-phenyl-8-pyridin-3-yl-1,2-dihydro-[1,7]naphthyridine-6-carbonyl)-amino]-propionic acid; 4-[(1-cyclohexylmethyl-5-hydroxy-2-oxo-3-phenyl-1,2-dihydro-[1,7]naphthyridine-6-carbonyl)-amino]-butyric acid; 3-{[1-benzyl-5-hydroxy-3-(4-methoxy-phenyl)-2-oxo-8-pyridin-3-yl-1,2-dihydro-[1,7]naphthyridine-6-carbonyl]-amino}-propionic acid; 4-{[1-benzyl-5-hydroxy-3-(4-methoxy-phenyl)-2-oxo-1,2-dihydro-[1,7]naphthyridine-6-carbonyl]-amino}-butyric acid; 3-{[1-benzyl-5-hydroxy-3-(3-methoxy-phenyl)-2-oxo-1,2-dihydro-[1,7]naphthyridine-6-carbonyl]-amino}-propionic acid; 4-{[1-benzyl-5-hydroxy-3-(3-methoxy-phenyl)-2-oxo-1,2-dihydro-[1,7]naphthyridine-6-carbonyl]-amino}-butyric acid; 1-[(1-benzyl-5-hydroxy-2-oxo-3-phenyl-1,2-dihydro-[1,7]naphthyridine-6-carbonyl)-amino]-cyclopropanecarboxylic acid; 1-[(1-benzyl-5-hydroxy-2-oxo-3-phenyl-8-pyridin-3-yl-1,2-dihydro-[1,7]naphthyridine-6-carbonyl)-amino]-cyclopropanecarboxylic acid; 3-[(1-benzyl-5-hydroxy-2-oxo-3-phenyl-8-pyridin-3-yl-1,2-dihydro-[1,7]naphthyridine-6-carbonyl)-amino]-2,2-dimethyl-propionic acid; 3-{[1-benzyl-8-(2-ethoxy-pyrimidin-5-yl)-5-hydroxy-2-oxo-3-phenyl-1,2-dihydro-[1,7]naphthyridine-6-carbonyl]-amino}-propionic acid; 3-[(1-benzyl-5-hydroxy-2-oxo-3-phenyl-8-pyridin-2-yl-1,2-dihydro-[1,7]naphthyridine-6-carbonyl)-amino]-propionic acid; 3-[(1-benzyl-5-hydroxy-2-oxo-3-phenyl-8-pyridazin-4-yl-1,2-dihydro-[1,7]naphthyridine-6-carbonyl)-amino]-propionic acid; 3-[(1-benzyl-5-hydroxy-2-oxo-3-phenyl-8-thiazol-2-yl-1,2-dihydro-[1,7]naphthyridine-6-carbonyl)-amino]-propionic acid; 7-benzyl-4-hydroxy-8-oxo-7,8-dihydro-[2,7]naphthyridine-3-carboxylic acid (3-formylamino-propyl)-amide; 7-benzyl-4-hydroxy-8-oxo-7,8-dihydro-[2,7]naphthyridine-3-carboxylic acid (3-acetylamino-propyl)-amide; 3-[(1-cyclohexylmethyl-5-hydroxy-2-oxo-3-phenyl-8-pyridin-4-yl-1,2-dihydro-[1,7]naphthyridine-6-carbonyl)-amino]-propionic acid; 3-[(5-hydroxy-2-oxo-1,3-diphenyl-8-pyridin-4-yl-1,2-dihydro-[1,7]naphthyridine-6-carbonyl)-amino]-propionic acid; 3-{[1-benzyl-5-hydroxy-8-(1-methyl-1h-pyrazol-4-yl)-2-oxo-3-phenyl-1,2-dihydro-[1,7]naphthyridine-6-carbonyl]-amino}-propionic acid; 3-[(1-benzyl-5-hydroxy-2-oxo-3-phenyl-8-thiazol-5-yl-1,2-dihydro-[1,7]naphthyridine-6-carbonyl)-amino]-propionic acid; 3-[(1-benzyl-5-hydroxy-2-oxo-3-phenyl-8-thiazol-4-yl-1,2-dihydro-[1,7]naphthyridine-6-carbonyl)-amino]-propionic acid; 3-[(1-benzyl-5-hydroxy-2-oxo-3-phenyl-8-pyridazin-3-yl-1,2-dihydro-[1,7]naphthyridine-6-carbonyl)-amino]-propionic acid; 3-[(1-benzyl-5-hydroxy-2-oxo-3-phenethyl-8-pyridin-3-yl-1,2-dihydro-[1,7]naphthyridine-6-carbonyl)-amino]-propionic acid; 3-[(1,3-dibenzyl-5-hydroxy-2-oxo-1,2-dihydro-[1,7]naphthyridine-6-carbonyl)-amino]-propionic acid; 3-[(7-benzyl-4-hydroxy-8-oxo-1-pyridin-3-yl-7,8-dihydro-[2,7]naphthyridine-3-carbonyl)-amino]-propionic acid; 3-{[1-cyclohexylmethyl-8-(2-ethoxy-pyrimidin-5-yl)-5-hydroxy-2-oxo-3-phenyl-1,2-dihydro-[1,7]naphthyridine-6-carbonyl]-amino}-propionic acid; 3-{[1-benzyl-5-hydroxy-8-(2-methylsulfanyl-pyrimidin-5-yl)-2-oxo-3-phenyl-1,2-dihydro-[1,7]naphthyridine-6-carbonyl]-amino}-propionic acid; 3-{[1-benzyl-5-hydroxy-2-oxo-3-(4-trifluoromethyl-phenyl)-1,2-dihydro-[1,7]naphthyridine-6-carbonyl]-amino}-propionic acid; 3-{[1-benzyl-5-hydroxy-2-oxo-3-(2-trifluoromethyl-phenyl)-1,2-dihydro-[1,7]naphthyridine-6-carbonyl]-amino}-propionic acid; 4-{[1-benzyl-5-hydroxy-2-oxo-3-(4-trifluoromethyl-phenyl)-1,2-dihydro-[1,7]naphthyridine-6-carbonyl]-amino}-butyric acid; 4-{[1-benzyl-5-hydroxy-2-oxo-3-(3-trifluoromethyl-phenyl)-1,2-dihydro-[1,7]naphthyridine-6-carbonyl]-amino}-butyric acid; 4-{[1-benzyl-5-hydroxy-2-oxo-3-(2-trifluoromethyl-phenyl)-1,2-dihydro-[1,7]naphthyridine-6-carbonyl]-amino}-butyric acid; 3-{[1-benzyl-5-hydroxy-2-oxo-8-pyridin-3-yl-3-(4-trifluoromethyl-phenyl)-1,2-dihydro-[1,7]naphthyridine-6-carbonyl]-amino}-propionic acid; 3-{[1-benzyl-5-hydroxy-2-oxo-8-pyridin-3-yl-3-(3-trifluoromethyl-phenyl)-1,2-dihydro-[1,7]naphthyridine-6-carbonyl]-amino}-propionic acid; 3-{[1-benzyl-5-hydroxy-2-oxo-8-pyridin-3-yl-3-(2-trifluoromethyl-phenyl)-1,2-dihydro-[1,7]naphthyridine-6-carbonyl]-amino}-propionic acid; 3-[(1-cyclopentylmethyl-5-hydroxy-2-oxo-3-phenyl-1,2-dihydro-[1,7]naphthyridine-6-carbonyl)-amino]-propionic acid; 4-[(1-cyclopentylmethyl-5-hydroxy-2-oxo-3-phenyl-1,2-dihydro-[1,7]naphthyridine-6-carbonyl)-amino]-butyric acid; 3-[(1-cyclopentylmethyl-5-hydroxy-2-oxo-3-phenyl-8-pyridin-3-yl-1,2-dihydro-[1,7]naphthyridine-6-carbonyl)-amino]-propionic acid; 1-[(7-benzyl-4-hydroxy-8-oxo-7,8-dihydro-[2,7]naphthyridine-3-carbonyl)-amino]-cyclopropanecarboxylic acid; 3-{[1-(2-ethyl-butyl)-5-hydroxy-2-oxo-3-phenyl-1,2-dihydro-[1,7]naphthyridine-6-carbonyl]-amino}-propionic acid; 4-{[1-(2-ethyl-butyl)-5-hydroxy-2-oxo-3-phenyl-1,2-dihydro-[1,7]naphthyridine-6-carbonyl]-amino}-butyric acid; 3-{[1-(2-ethyl-butyl)-5-hydroxy-2-oxo-3-phenyl-8-pyridin-3-yl-1,2-dihydro-[1,7]naphthyridine-6-carbonyl]-amino}-propionic acid; 3-{[1-(2-ethyl-butyl)-5-hydroxy-2-oxo-3-phenyl-8-pyridin-4-yl-1,2-dihydro-[1,7]naphthyridine-6-carbonyl]-amino}-propionic acid; 3-{[(1-benzyl-5-hydroxy-2-oxo-3-phenyl-1,2-dihydro-[1,7]naphthyridine-6-carbonyl)-amino]-methyl}-benzoic acid; and {1-[(1-benzyl-5-hydroxy-2-oxo-3-phenyl-8-pyridin-3-yl-1,2-dihydro-[1,7]naphthyridine-6-carbonyl)-amino]-cyclopropyl}-acetic acid; or a pharmaceutically acceptable salt, single stereoisomer, mixture of stereoisomers, ester, tautomer, or prodrug thereof.
25. The method of claim 1 , wherein the compound is administered in a pharmaceutical composition further comprising at least one additional therapeutic agent selected from the group consisting of vitamin B 12, folic acid, ferrous sulfate, recombinant human erythropoietin, and an erythropoiesis stimulating agent (ESA).
26. A method of inhibiting the activity of a HIF hydroxylase, the method comprising bringing into contact the HIF hydroxylase and an inhibitory-effective amount of a compound of Formula Ia:
wherein
q is 0 or 1;
R 1 is selected from the group consisting of hydrogen, cyano, halo, hydroxy, alkoxy, amino, acyloxy, aminoacyl, alkyl, cycloalkyl, cycloalkoxy, aryl, aryloxy, heterocycloalkyl, heteroaryloxy, and heteroaryl;
one of Z 1 or Z 2 is —NR 2 — and the other of Z 1 or Z 2 is —C(O)—;
R 2 is selected from the group consisting of hydrogen, alkyl, cycloalkyl, aryl, heterocycloalkyl, and heteroaryl;
R 3 and R 4 are each independently selected from the group consisting of hydrogen, alkyl, alkoxy, amino, acyloxy, aminoacyl, cycloalkyl, cycloalkoxy, aryl, aryloxy, heterocycloalkyl, heteroaryloxy, and heteroaryl;
— is a single or a double bond;
Y is —NR 6 — or —O—;
n is 1, 2, 3, 4, 5, or 6;
R 5 is selected from the group consisting of hydrogen, acyl, sulfonyl, aminoacyl, oxycarbonyl, alkyl, cycloalkyl, aryl, heterocycloalkyl, and heteroaryl;
R 6 is selected from the group consisting of hydrogen, alkyl, cycloalkyl, aryl, heterocycloalkyl, and heteroaryl;
R 7 and R 8 are each independently selected from the group consisting of hydrogen, alkyl, cycloalkyl, aryl, heterocycloalkyl, and heteroaryl; or R 7 and R 8 together with the carbon atom to which they are attached form a cycloalkyl, or heterocycloalkyl;
W is selected from the group consisting of R 9 , —C(O)OR 9 , —C(O)NR 6 R 9 , —NR 6 C(O)R 9 , —NR 6 C(O)OR 9 , —NR 6 C(O)NR 6 R 9 , —NR 6 S(O) 2 R 9 , —S(O) 2 NR 6 R 9 , —NR 6 R 9 and —OR 9 ; and
R 9 is selected from the group consisting of hydrogen, alkyl, cycloalkyl, aryl, heterocycloalkyl, and heteroaryl; and
further wherein each alkyl, alkoxy, amino, acyloxy, aminoacyl, cycloalkyl, cycloalkoxy, aryl, aryloxy, heterocycloalkyl, heteroaryloxy, and heteroaryl described above for R 1 , R 2 , R 3 , R 4 , R 6 , R 7 , R 8 and R 9 can be optionally substituted with from 1 to 3 R 10 ,
wherein each R 10 is independently selected from the group consisting of alkyl, alkoxy, haloalkyl, haloalkoxy, acyl, acylamino, acyloxy, amino, aminoacyl, aminocarbonylamino, aminothiocarbonylamino, aminocarbonyloxy, aryl, aryloxy, aryloxyaryl, cyano, halogen, hydroxyl, nitro, oxo, thioxo, carboxyl, carboxyl ester, cycloalkyl, thio, alkylthio, arylthio, cycloalkylthio, heteroarylthio, heterocyclicthio, sulfonyl, heteroaryl, heterocyclic, cycloalkoxy, heteroaryloxy, heterocyclyloxy, oxycarbonylamino, oxythiocarbonylamino, —OS(O) 2 -alkyl, —OS(O) 2 -aryl, —OS(O) 2 -heteroaryl, —OS(O) 2 -heterocyclic, —OSO 2 —NR 40 R 40 , —NR 40 S(O) 2 —NR 40 -alkyl, —NR 40 S(O) 2 —NR 40 -aryl, —NR 40 S(O) 2 —NR 40 -heteroaryl, and —NR 40 S(O) 2 —NR 40 -heterocyclic, where each R 40 is independently hydrogen or alkyl; and further wherein each alkyl, alkoxy, aryl, aryloxy, aryloxyaryl, cycloalkyl, alkylthio, arylthio, cycloalkylthio, heteroarylthio, heterocyclicthio, heteroaryl, heterocyclic, cycloalkoxy, heteroaryloxy, or heterocyclyloxy may be additionally substituted with from 1-3 substituents independently alkyl, alkoxy, haloalkyl, haloalkoxy, or halogen;
or a pharmaceutically acceptable salt, single stereoisomer, mixture of stereoisomers, ester, tautomer or prodrug thereof.
27. The method of claim 26 , wherein the HIF hydroxylase enzyme is an asparaginyl hydroxylase.
28. The method of claim 27 , wherein the asparaginyl hydroxylase is factor inhibiting HIF.
29. The method of claim 26 , wherein the HIF hydroxylase enzyme is a prolyl hydroxylase.
30. The method of claim 29 , wherein the prolyl hydroxylase is selected from the group consisting of human EGLN1, EGLN2, and EGLN3.