Patent ID: 7964732

Claim:
A compound of the formula (I): wherein Y 1 and Y 2 are each independently N or CH; with the proviso that only one of Y 1 and Y 2 may be N; R 1 and R 2 are each independently hydrogen, (C 1 -C 4 )alkyl, halo(C 1 -C 4 )alkyl, hydroxy(C 1 -C 4 )alkyl, or (C 1 -C 2 )alkoxy(C 1 -C 2 )alkyl; or R 1 and R 2 , together with the carbon atom to which they are linked, can form a cyclopropyl group; R 3 is (C 1 -C 4 )alkyl, (C 1 -C 4 )alkyl-cyclopropyl, (C 1 -C 2 )alkoxy(C 1 -C 4 )alkyl or hydroxy(C 1 -C 4 )alkyl, each optionally substituted by halo or halo(C 1 -C 2 )alkyl; R 4 and R 6 are each independently hydrogen, halo, cyano, (C 3 -C 6 )cycloalkyl, (C 1 -C 6 )alkoxy or (C 1 -C 6 )alkyl, wherein (C 1 -C 6 )alkyl is optionally substituted with one or more substituents selected from halo, amino, cyano, hydroxy, R 7 R 8 NC(O)— and R 7 OC(O)—; R 5 is hydrogen, (C 3 -C 6 )cycloalkyl, or (C 1 -C 6 )alkyl, wherein (C 1 -C 6 )alkyl is optionally substituted with one or more substituents selected from halo, amino, cyano, hydroxy, R 7 R 8 NC(O)— or R 7 OC(O)—; with the proviso that at least one of R 4 , R 5 and R 6 is not hydrogen; and, R 7 and R 8 are each independently hydrogen or (C 1 -C 4 )alkyl; or a pharmaceutically acceptable salt thereof.