Patent ID: 8785467

Claim:
A compound of the formula I: wherein: R 1 is C 1-6 alkyl or C 1-6 alkyl-C 3-6 cycloalkyl, which is unsubstituted or substituted with a substituent selected from the group consisting of: (1) phenyl, which is unsubstituted or substituted with one to five substituents selected from R 6 , R 7 and R 8 , (2) heteroaryl, which is unsubstituted or substituted with one to five substituents selected from R 6 , R 7 and R 8 , (3) —O-phenyl, which is unsubstituted or substituted with one to five substituents selected from R 6 , R 7 and R 8 , and (4) —O-heteroaryl, which is unsubstituted or substituted with one to five substituents selected from R 6 , R 7 and R 8 ; R 2 is selected from the group consisting of: (1) halogen, (2) hydroxyl, (3) C 1-6 alkyl, (4) —O—C 1-6 alkyl, (5) hydrogen, (6) —CN, (7) —S—C 1-6 alkyl, (8) —NR 10 R 11 , wherein R 10 and R 11 are independently selected from the group consisting of hydrogen and C 1-6 alkyl, and (9) heteroaryl, which is unsubstituted or substituted with one to five substituents selected from R 6 , R 7 and R 8 , R 3 is C 1-6 alkyl, which is unsubstituted or substituted with halogen; R 4 is selected from the group consisting of: (1) hydrogen, and (2) C 1-6 alkyl; R 5 is C 1-6 alkyl, C 1-6 alkyl-C 3-6 cycloalkyl or C 2-6 alkenyl which is unsubstituted or substituted with a substituent selected from the group consisting of: (1) halogen, (2) hydroxyl, (3) —O—C 1-6 alkyl, which is unsubstituted or substituted with halogen or hydroxyl, (4) phenyl, which is unsubstituted or substituted with one to five substituents selected from R 6 , R 7 and R 8 , and (5) heteroaryl, which is unsubstituted or substituted with one to five substituents selected from R 6 , R 7 and R 8 ; R 6 , R 7 and R 8 are independently selected from the group consisting of: (1) halogen, (2) hydroxyl, (3) C 1-6 alkyl, which is unsubstituted or substituted with fluoro, (4) —O—C 1-6 alkyl, which is unsubstituted or substituted with fluoro, (5) —NR 10 R 11 , (6) —(C═O)—NR 10 R 11 , (7) —S(O) 2 —NR 10 R 11 , (8) —S(O) q —R 12 , where q is 0, 1 or 2 and where R 12 is selected from the group consisting of hydrogen and C 1-6 alkyl, and (9) —CN; or a pharmaceutically acceptable salt thereof.