Ortho pyrrolidine, benzyl-substituted heterocycle CCR1 antagonists for autoimmune diseases and inflammation

1. A compound of formula I:

wherein

X is an sp 2 -hybridized carbon atom;

X 7 is selected from sp 2 -hybridized C and N;

Q, including X and X 7 , is a 5- or 6-membered unsaturated, optionally substituted ring and is selected from carbocycle and heterocycle;

R 1a and R 1b are independently selected from H and CH 3 or R 1a and R 1b taken together with the carbon atom to which they are attached may form a (C 3 -C 7 )cycloalkyl group, with the proviso that both R 1a and R 1b cannot be CH 3 ;

R 2 is selected from H, methyl, ethyl, methoxy, ethoxy, cyano and halo;

R 4 is selected from H, methyl, ethyl, methoxy, ethoxy, cyano and halo;

Y is selected from —C(═O)—, —O—, and —CR 5 R 6 —, wherein R 5 is selected from H, methyl, ethyl, methoxy, ethoxy, —OH, F, —OC(═O)CH 3 and —OC(═O)CH 2 CH 3 ; and R 6 is selected from H, methyl and ethyl;

W is —CHR 8 — or Y—W taken together represents —CR 5 ═CR 8 —;

R 8 is chosen from H, methyl and ethyl, or R 8 taken together with R 5 forms a carbocycle;

X 8 is selected from CH and N;

Z is

wherein R is selected from the group consisting of an optionally substituted alkyl group, an optionally substituted carbocycle and an optionally substituted heterocycle, wherein said alkyl group, carbocycle or heterocycle is attached to the remainder of Z through a carbon atom;

R 11 is selected from H, methyl and ethyl;

R 12 and R 13 are independently selected in each occurrence from H, methyl and ethyl or R 12 and R 13 taken together with the carbon atom to which they are attached may form a 3 to 7-membered cyclic group;

p is zero, one or two; and

q is one or two.

2. A compound according to claim 1 of formula Ia:

wherein

R 2 is selected from H, CH 3 , Cl, F and Br;

R 4 is selected from H, CH 3 , Cl, F and Br;

Y is selected from —C(═O)—, —O—, and —CHR 5 —, wherein R 5 is selected from H, C 1-8 alkyl, —OH, F, —OC 1-8 alkyl, and —OC(═O)—C 1-8 alkyl.

3. A compound according to claim 1 wherein Y is —CHR 5 —.

4. A compound according to claim 1 wherein X 7 is N.

5. A compound according to claim 4 wherein Q contains at least one heteroatom in addition to X 7 .

6. A compound according to claim 1 wherein X 7 is an sp 2 -hybridized carbon.

7. A compound according to claim 6 wherein Q contains at least one heteroatom.

8. A compound according to claim 6 wherein Q contains two heteroatoms.

9. A compound according to claim 7 wherein Q is Q is chosen from pyrimidine, pyrazole, oxazole, pyrrole, thiazole, 1H-1,2,3-triazole, 1,2,3-oxadiazole, 1,2,3-thiadiazole, 1,2,5-thiadiazole, 1,2,5-thiadiazole oxide, 1,2,5-thiadiazole dioxide, 1,2,5-oxadiazole, pyridine, pyrazine, pyridazine and isoxazole wherein each of said pyrimidine, pyrazole, oxazole, pyrrole, thiazole, 1H-1,2,3-triazole, 1,2,3-oxadiazole, 1,2,3-thiadiazole, 1,2,5-thiadiazole, 1,2,5-thiadiazole oxide, 1,2,5-thiadiazole dioxide, 1,2,5-oxadiazole, pyridine, pyrazine, pyridazine and isoxazole moieties is optionally substituted.

10. A compound according to claim 9 of formula

wherein R 7 is chosen from H, (C 1 -C 4 )alkyl, halo(C 1 -C 4 )alkyl, hydroxy(C 1 -C 4 )alkyl, (C 1 -C 4 )alkoxy(C 1 -C 4 )alkyl, hydroxyl, halo, amino (C 1 -C 4 )alkyl, (C 1 -C 4 )alkylamino (C 1 -C 4 )alkyl, di[(C 1 -C 4 )alkyl]amino(C 1 -C 4 )alkyl, and —C(═O)NH 2 ; and

R 10 is chosen from H and (C 1 -C 4 )alkyl.

11. A compound according to claim 10 , wherein R 7 is selected from the group consisting of H, CH 3 , Cl, F, Br, CF 3 , ethyl, isopropyl, CH 2 OH, CH 2 OCH 3 , CH 2 NH 2 , C(═O)NH 2 and CH 2 NHCH 3 and R 10 is hydrogen or methyl.

12. A compound according to claim 1 wherein W is CH 2 , Y is —CHR 5 — and R 5 is selected from H, CH 3 , —OH, —OCH 3 , and —OCOCH 3 .

13. A compound according to claim 4 wherein Q is selected from the group consisting of triazole, imidazole, and tetrazole, wherein each of said triazole and imidazole moieties is optionally substituted.

14. A compound having a formula chosen from among the following:

wherein

R 1a and R 1b are independently selected from H and CH 3 or R 1a and R 1b taken together with the carbon atom to which they are attached may form a (C 3 -C 7 )cycloalkyl group, with the proviso that both R 1a and R 1b cannot be CH 3 ,

R 2 is selected from H, methyl, ethyl, methoxy, ethoxy, cyano and halo;

R 4 is selected from H methyl, ethyl, methoxy, ethoxy, cyano and halo;

Y is selected from —C(═O)—, —O—, and —CR 5 R 6 —, wherein R 5 is selected from H, methyl, ethyl, methoxy, ethoxy, —OH, F, —OC(═O)CH 3 and —OC(═O)CH 2 CH 3 ; and R 6 is selected from H, methyl and ethyl;

W is —CHR 8 — or Y—W taken together represents —CR 5 ═CR 8 —;

R 8 is chosen from H, methyl and ethyl or R 8 taken together with R 5 forms a carbocycle;

X 8 is selected from CH and N;

Z is selected from the group consisting of

wherein R is selected from the group consisting of an optionally substituted alkyl group, an optionally substituted carbocycle and an optionally substituted heterocycle, wherein said alkyl group, carbocycle or heterocycle is attached to the remainder of Z through a carbon atom;

R 11 is selected from H, methyl and ethyl;

R 12 and R 13 are independently selected in each occurrence from H, methyl and ethyl or R 12 and R 13 taken to ether with the carbon atom to which the are attached ma form a 3 to 7-membered cyclic group;

p is zero, one or two

q is one or two;

R 7 and R 9 are chosen from H, (C 1 -C 4 )alkyl, halo(C 1 -C 4 )alkyl, hydroxy(C 1 -C 4 )alkyl, (C 1 -C 4 )alkoxy(C 1 -C 4 )alkyl, hydroxyl, halo, amino (C 1 -C 4 )alkyl, (C 1 -C 4 )alkylamino (C 1 -C 4 )alkyl, di[(C 1 -C 4 )alkyl]amino(C 1 -C 4 )alkyl, and —C(═O)NH 2 ; and

R 10 is chosen from H and (C 1 -C 4 )alkyl.

15. A compound according to claim 14 which has the structure selected from a group consisting of the following:

16. A compound according to claim 15 wherein:

R 9 is selected from the group consisting of H, Cl, F, Br, CF 3 , methyl, ethyl, isopropyl, CH 2 OH, CH 2 OCH 3 , CH 2 NH 2 , C(═O)NH 2 and CH 2 NHCH 3 ; and

Y is selected from CH 2 , CHOH, C═O, CHF, C(CH 3 )OH and CHOC(═O)CH 3 or

Y—W is chosen from —CH═CH— and

17. A compound according to claim 16 wherein R 9 is selected from H, methyl, ethyl, isopropyl, —CH 2 OH, —CH 2 OCH 3 , —CH 2 NHCH 3 , CF 3 and Cl.

18. A compound according to claim 14 , wherein, in Z, R 12 and R 13 are independently selected in each occurrence from H, methyl, ethyl, propyl and butyl or, in one occurrence R 12 and R 13 taken together with the carbon atom to which they are attached form a cyclopropyl group.

19. A compound according to claim 18 wherein Z is selected from

wherein U is chosen from direct bond, —CH 2 —, —CH(CH 3 )—, —C(CH 3 ) 2 —, —CH(CH 2 CH 3 )—,

—CH 2 CH 2 —, —CH 2 CH(CH 3 )—, and —C(CH 3 )CH 2 —; and

V is chosen from —CH 2 —, —CH(CH 3 )—, —C(CH 3 ) 2 —, —CH(CH 2 CH 3 )—,

—CH 2 CH 2 —, —CH 2 CH(CH 3 )—, and —C(CH 3 )CH 2 —.

20. A compound according to claim 14 , wherein R is selected from the group consisting of optionally substituted (C 1 -C 8 ) linear or branched alkyl, (C 3 -C 8 )cycloalkyl, phenyl, isoxazolyl, benzoxazinyl, chromanyl, tetrahydronaphthalenyl, furanyl, benzoxepinyl, thiazolyl, pyrazolyl, benzoxadiazolyl, thiochromanyl, benzofuranyl, indanyl, pyridinyl, benzhydryl, naphthalenyl, isochromanyl, pyrimidinyl, piperidinyl, benzothiophenyl, thiadiazolyl, benzoxazolyl, azetidinyl, pyrrolidinyl, tetrahydrofuranyl, tetrahydropyranyl, indolyl and tetrahydroquinolyl.

21. A compound according to claim 20 , wherein the optional substituents are selected from the group consisting of (C 1 -C 8 )alkyl, phenyl, substituted phenyl, oxo, hydroxy, (C 1 -C 8 )fluoroalkyl, halo, (C 1 -C 8 )alkoxy, (C 1 -C 8 )alkylthio, (C 1 -C 8 )fluoroalkylthio, (C 1 -C 8 )fluoroalkoxy, cyano, (C 1 -C 8 )alkylsulfonyl, di[(C 1 -C 8 )alkyl]amino, (C 1 -C 8 )alkylcarbonyl, amino, aminocarbonyl [H 2 NC(═O)—], (C 1 -C 8 )alkylaminocarbonyl, di[(C 1 -C 8 )alkyl]aminocarbonyl, aminosulfonyl [H 2 NSO 2 —], (C 1 -C 8 )alkylaminosulfonyl [CH 3 NHSO 2 —], di[(C 1 -C 8 )alkyl]aminosulfonyl, hydroxysulfonyl [HOSO 2 —], (C 1 -C 8 )alkylcarbonyl, carboxy [HOOC—], pyridinyl, pyrimidinyl, tetrahydropyranyloxy, pyrazolyl, substituted pyrazolyl, thienyl, and, in the case of nitrogen and sulfur-containing rings, oxide and dioxide.

22. A compound according to claim 21 , wherein the optional substituents are selected from the group consisting of methyl, ethyl, propyl, butyl, phenyl, axe, hydroxy, trifluoromethyl, chloro, fluoro, bromo, methoxy, ethoxy, methylthio, trifluoromethylthio, trifluoromethoxy, cyano, methanesulfonyl, dimethylamino, methoxycarbonyl [CH 3 C(═O)—], amino, aminocarbonyl [H 2 NC(═O)—], methylaminocarbonyl [CH 3 NHC(═O)—], dimethylaminocarbonyl [(CH 3 ) 2 NC(═O)—], aminosulfonyl [H 2 NSO 2 —], methylaminosulfonyl [CH 3 NHSO 2 —], dimethylaminosulfonyl [(CH 3 ) 2 NSO 2 —], hydroxysulfonyl [HOSO 2 —], acetyl, carboxy [HOOC—], halophenyl, methoxyphenyl, pyridinyl, pyrimidinyl, tetrahydropyranyloxy, pyrazolyl, methylpyrazolyl, methyltrifluoromethylpyrazolyl, thienyl, oxide and dioxide.

23. A compound of formula

wherein R is substituted phenyl or pyridinyl;

U is chosen from direct bond, —CH 2 —, —CH(CH 3 )—, —C(CH 3 ) 2 —, —CH(CH 2 CH 3 )—,

—CH 2 CH 2 —, —CH 2 CH(CH 3 )—, and —C(CH 3 )CH 2 —;

Y is selected from —C(═O)— and

W is —CHR 8 — or Y—W taken together represents —CR 5 ═CR 8 —;

R 2 is selected from H, methyl, ethyl, Cl, F and Br;

R 5 is selected from H, methyl, ethyl, —OH, F, methoxy, ethoxy, —OC(═O)CH 3 and —OC(═O)CH 2 CH 3 ;

R 8 is chosen from H and methyl, ethyl, or R 8 taken together with R 5 forms cyclopropyl; and

R 9 is selected from H, methyl, ethyl, CF 3 and Cl.

24. A compound according to claim 23 , wherein

R is chosen from 2-fluoro-4-chlorophenyl, 2-methyl-6-trifluoromethylpyridin-3-yl and 2,2-dimethyl-4-trifluoromethylphenyl;

U is a direct bond or —CH(CH 2 CH 3 )—;

Y is —CH 2 —,

W is —CH—;

R 2 is Cl; and

R 9 is H or methyl.

25. A pharmaceutical formulation comprising a compound according to claim 1 and a pharmaceutically acceptable carrier.

26. A compound according to claim 14 wherein

R 2 is selected from H, CH 3 , Cl, F and Br;

R 4 is selected from H, CH 3 , Cl, F and Br;

Y is selected from —C(═O)—, —O—, and —CHR 5 —, wherein R 5 is selected from H, C 1-6 alkyl, —OH, F, —OC 1-8 alkyl, and —OC(═O)—C 1-8 alkyl.

27. A compound according to claim 14 wherein Y is —CHR 5 —.

28. A pharmaceutical formulation comprising a compound according to claim 14 and a pharmaceutically acceptable carrier.