Patent ID: 7674815

Claim:
A compound of formula (I): or a pharmaceutically acceptable salt thereof, wherein: R 1 is hydrogen, C 1 -C 6 alkyl, hydroxy or halogen; R 2 is aryl optionally substituted by one or more substituents selected from the group consisting of: halogen and halogen-C 1 -C 6 alkyl; R 3 is unsubstituted heteroaryl or heteroaryl substituted by one or more substituents selected from the group consisting of: halogen, C 1 -C 6 alkyl, halogen-C 1 -C 6 alkyl, C 3 -C 8 cycloalkyl, and halogen-C 3 -C 8 cycloalkyl; R 4 is a group (a) wherein: A is CR 17 and R 17 and R 11 together are —CH═CH—; B is CR 18 wherein R 18 is hydrogen, halogen, C 1 -C 6 alkyl, C 1 -C 6 alkoxy or C 2 -C 6 alkenyl; D is CR 19 wherein R 19 is hydrogen, halogen, C 1 -C 6 alkyl, C 1 -C 6 alkoxy, C 2 -C 6 alkenyl or phenyl; E is CR 20 wherein R 20 is hydrogen, halogen, C 1 -C 6 alkyl, C 1 -C 6 alkoxy or C 2 -C 6 alkenyl; R 10 is selected from the group consisting of: (1) hydrogen, (2) halogen, (3) C 1 -C 6 alkyl, (4) COR wherein R is C 1 -C 6 alkyl, C 1 -C 6 alkoxy or C 3 -C 6 cycloalkyl, (5) S(O) 2 —C 1 -C 6 alkyl, (6) C 3 -C 6 cycloalkyl, and (7) phenyl; and n is 1, 2 or 3.