Patent ID: 8003797

Claim:
A compound of the formula I: wherein: A 1 is heteroaryl; A 2 is heteroaryl; A 3 is phenyl or naphthyl; R 1a , R 1b and R 1c are independently selected from the group consisting of: (1) hydrogen, (2) halogen, (3) hydroxyl, (4) C 1-6 alkyl, which is unsubstituted or substituted with halogen, hydroxyl or phenyl or napthyl, and (5) —O—C 1-6 alkyl, which is unsubstituted or substituted with halogen, hydroxyl or phenyl, with the proviso that at least one of R 1a , R 1b and R 1c is hydrogen; R 2a , R 2b and R 2c are independently selected from the group consisting of: (1) hydrogen, (2) halogen, (3) hydroxyl, (4) C 1-6 alkyl, which is unsubstituted or substituted with halogen, hydroxyl or phenyl, (5) —O—C 1-6 alkyl, which is unsubstituted or substituted with halogen, hydroxyl or phenyl, and (6) —NH—C 1-6 alkyl, or —N(C 1-6 alkyl)(C 1-6 alkyl), which is unsubstituted or substituted with halogen, with the proviso that at least one of R 2a , R 2b and R 2c is hydrogen; R 3a , R 3b and R 3c are independently selected from the group consisting of: (1) hydrogen, (2) halogen, (3) hydroxyl, (4) C 1-6 alkyl, which is unsubstituted or substituted with halogen, hydroxyl or phenyl or napthyl, and (5) —O—C 1-6 alkyl, which is unsubstituted or substituted with halogen, hydroxyl or phenyl, with the proviso that at least one of R 3a , R 3b and R 3c is hydrogen; R 4 and R 5 are independently selected from hydrogen and C 1-6 alkyl; R 6 is hydrogen, C 1-6 alkyl or C 3-6 cycloalkyl; or a pharmaceutically acceptable salt thereof.