Pyridone amides and analogs exhibiting anti-cancer and anti-proliferative activities

1. A compound of Formula I,

or a pharmaceutically acceptable salt, enantiomer, stereoisomer or tautomer thereof, wherein:

A is

wherein the “*” is connected to the R1-substituted phenyl ring and the “#” is connected to the amide carbonyl;

W is —(CH 2 ) m -pyrazole optionally substituted with —(R25) m ;

X1 is halogen or C1-C6 alkyl;

X2 is halogen or C1-C6 alkyl;

each R1 is individually and independently halogen, H, C1-C6 alkyl, C3-C8 branched alkyl, C3-C8 cycloalkyl, C1-C6 alkoxy, branched C3-C6 alkoxy, or cyano;

Z1 and Z2 are independently and individually CR2 or N;

Z3 is CR3 or N;

with the proviso that ring B is a monocyclic ring which is not a tetrazine;

each R2 is individually and independently H, halogen, C1-C6 alkyl, C3-C8 branched alkyl, C3-C8 cycloalkyl, C1-C6 alkoxy, branched C3-C6 alkoxy, or cyano;

R3 is —NHR4, H, —NR6(R7), C1-C8 alkyl, C2-C3 alkynyl, C3-C8 cycloalkyl, C1-C6-alkoxy-C1-C6-alkyl-, hydroxy-C1-C6-alkyl-, cyano, cyano-C1-C6-alkyl-, C1-C6-SO 2 —C1-C6-alkyl-, (R7)R6N—C1-C6-alkyl-, C4-C6-heterocyclyl, C4-C6-heterocyclyl-C1-C6-alkyl-, C6-C10 aryl, C5-C6-heteroaryl, or C5-C6-heteroaryl-C1-C6-alkyl-, wherein

aryl is phenyl, naphthyl, tetrahydronaphthyl, indenyl or indanyl; and

each alkyl or alkylene is optionally substituted with one or two C1-C6 alkyl;

R4 is H, C1-C8 alkyl, C3-C8 cycloalkyl, —(CH 2 ) m —C(O)R5, —(CH 2 ) p —OR6, —(CH 2 ) p —NR6(R7), —(CH 2 ) p —CN, —(CH 2 ) p —SO 2 —C1-C6-alkyl, C6-C10 aryl, —(CH 2 ) m —C5-C6-heteroaryl, —(CH 2 ) m —C4-C6-heterocyclyl, —(CH 2 ) m —C(O)N(R6)-C4-C6-heterocyclyl, or —(CH 2 ) m —C(O)N(R6)-C5-C6-heteroaryl, wherein each alkyl or alkylene is optionally substituted with one or two C1-C6 alkyl;

R5 is C1-C7 alkyl, branched C3-C8 alkyl, C3-C8 cycloalkyl, —(CH 2 ) m —OR6, —(CH 2 ) m —NR6(R7), C6-C10 aryl, —(CH 2 ) m —C5-C6-heteroaryl, or —(CH 2 ) m —C4-C6-heterocyclyl, wherein

aryl is phenyl, naphthyl, tetrahydronaphthyl, indenyl or indanyl; and

each alkyl or alkylene is optionally substituted with one or two C1-C6 alkyl;

each R6 and R7 is individually and independently H, C1-C6 alkyl, or branched C3-C8 alkyl;

each R8 is individually and independently C1-C6 alkoxy, H, halogen, C1-C6 alkyl, C3-C8 branched alkyl, C3-C8 cycloalkyl, branched C3-C6 alkoxy, or cyano;

each alkynyl, cycloalkyl, aryl, heteroaryl and heterocyclyl is independently and optionally substituted with —(R25) m ;

each R25 is individually and independently C1-C6 alkyl, branched C3-C8 alkyl, halogen, —(CH 2 ) m —CN, —(CH 2 ) m —OR6, —(CH 2 ) m —NR6(R7), —(CH 2 ) m —SO 2 —C1-C6-alkyl, —(CH 2 ) m —C(O)NR6(R7), —(CH 2 ) m —C(O)—C4-C6-heterocyclyl, or —(CH 2 ) m —C4-C6-heterocyclyl, wherein each alkyl or alkylene is optionally substituted with one or two C1-C6 alkyl;

each m is individually and independently 0, 1, 2, or 3;

n is 0, 1, or 2; and

each p is individually and independently 1, 2, or 3.

2. The compound of claim 1 , wherein the compound is a compound of Formula Ia,

or a pharmaceutically acceptable salt, enantiomer, stereoisomer or tautomer thereof.

3. The compound of claim 2 , wherein the compound is a compound of Formula Ib,

or a pharmaceutically acceptable salt, enantiomer stereoisomer or tautomer thereof.

4. The compound of claim 3 , wherein R3 is —NHR4.

5. The compound of claim 3 , wherein R3 is H.

6. The compound of claim 3 , wherein R3 is —NR6(R7), (R7)R6N—C1-C6-alkyl, C1-C8 alkyl, C2-C3 alkynyl, C3-C8 cycloalkyl, C1-C6-alkoxy-C1-C6-alkyl-, hydroxy-C1-C6-alkyl-, cyano, cyano-C1-C6-alkyl-, C1-C6-SO 2 —C1-C6-alkyl-, C4-C6-heterocyclyl, C4-C6-heterocyclyl-C1-C6-alkyl-, C6-C10 aryl, C5-C6-heteroaryl, or C5-C6-heteroaryl-C1-C6-alkyl-, and wherein each alkyl or alkylene is optionally substituted with one or two C1-C6 alkyl.

7. The compound of claim 3 , wherein W is

8. The compound of claim 2 , wherein Z3 is CR3 and W is

9. The compound of claim 8 , wherein the A ring is

and wherein R8 is C1-C6 alkoxy.

10. The compound of claim 9 , wherein the R8 is ethoxy.

11. The compound of claim 1 , wherein Z1 is CR2, Z2 is N, and Z3 is CR3.

12. The compound of claim 11 , wherein the compound is a compound of Formula Id,

or a pharmaceutically acceptable salt, enantiomer, stereoisomer or tautomer thereof.

13. The compound of claim 12 , wherein R3 is —NHR4.

14. The compound of claim 12 , wherein R3 is H.

15. The compound of claim 12 , wherein R3 is —NR6(R7), C1-C8 alkyl, C2-C3 alkynyl, C3-C8 cycloalkyl, C1-C6-alkoxy-C1-C6-alkyl-, hydroxy-C1-C6-alkyl-, cyano, cyano-C1-C6-alkyl-, C1-C6-SO 2 —C1-C6-alkyl-, (R7)R6N—C1-C6-alkyl-, C4-C6-heterocyclyl, C4-C6-heterocyclyl-C1-C6-alkyl-, C6-C10 aryl, C5-C6-heteroaryl, or C5-C6-heteroaryl-C1-C6-alkyl-, and wherein each alkyl or alkylene is optionally substituted with one or two C1-C6 alkyl.

16. The compound of claim 12 , wherein W is

17. The compound of claim 11 , wherein W is

18. The compound of claim 16 or 17 , wherein the A ring is

and wherein R8 is C1-C6 alkoxy.

19. The compound of claim 18 , wherein the R8 is ethoxy.

20. A compound selected from the group consisting of N-(2,5-difluoro-4-(5-(1-methyl-1H-pyrazol-4-yl)pyrimidin-4-yloxy)phenyl)-1-(4-fluorophenyl)-2-oxo-1,2-dihydropyridine-3-carboxamide, N-(2,5-difluoro-4-(3-(1-methyl-1H-pyrazol-4-yl)pyridin-4-yloxy)phenyl)-1-(4-fluorophenyl)-2-oxo-1,2-dihydropyridine-3-carboxamide, N-(4-(3-(1-(cyanomethyl)-1H-pyrazol-4-yl)pyridin-4-yloxy)-2,5-difluorophenyl)-1-(4-fluorophenyl)-2-oxo-1,2-dihydropyridine-3-carboxamide, N-(2,5-difluoro-4-(3-(1-methyl-1H-pyrazol-4-yl)pyridin-4-yloxy)phenyl)-4-ethoxy-1-(4-fluorophenyl)-2-oxo-1,2-dihydropyridine-3-carboxamide, N-(4-(2-amino-3-(1-methyl-1H-pyrazol-4-yl)pyridin-4-yloxy)-2,5-difluorophenyl)-1-(4-fluorophenyl)-2-oxo-1,2-dihydropyridine-3-carboxamide, N-(5-chloro-2-fluoro-4-(3-(1-methyl-1H-pyrazol-4-yl)pyridin-4-yloxy)phenyl)-4-ethoxy-1-(4-fluorophenyl)-2-oxo-1,2-dihydropyridine-3-carboxamide, N-(2,5-difluoro-4-(3-(1-methyl-1H-pyrazol-4-yl)pyridin-4-yloxy)phenyl)-5-(4-fluorophenyl)-1-methyl-4-oxo-1,4-dihydropyridine-3-carboxamide, N-(4-(2-amino-3-(1-methyl-1H-pyrazol-4-yl)pyridin-4-yloxy)-2,5-difluorophenyl)-4-ethoxy-1-(4-fluorophenyl)-2-oxo-1,2-dihydropyridine-3-carboxamide, N-(4-(3-(1H-pyrazol-4-yl)pyridin-4-yloxy)-2,5-difluorophenyl)-4-ethoxy-1-(4-fluorophenyl)-2-oxo-1,2-dihydropyridine-3-carboxamide, N-(4-(2-amino-3-(1-methyl-1H-pyrazol-4-yl)pyridin-4-yloxy)-2,5-difluorophenyl)-5-(4-fluorophenyl)-1-methyl-4-oxo-1,4-dihydropyridine-3-carboxamide and pharmaceutically acceptable salts, and tautomers thereof.

21. A pharmaceutical composition, comprising a compound of claim 1 and a pharmaceutically acceptable carrier.

22. The composition of claim 21 , further comprising an additive selected from adjuvants, excipients, diluents, or stabilizers.

23. A method of treating rheumatoid arthritis, the method comprising administering to a patient in need thereof an effective amount of a compound of claim 1 .