Patent ID: 7906652

Claim:
A compound of structural formula I: wherein: Ar 1 is: wherein R g is hydrogen, and R 9 is selected from R 15 , hydrogen, and cyano; Ar 2 is: wherein R 10 is selected from: R 15 , hydrogen, halogen, and cyano; X is selected from: (1) hydroxy, (2) NH 2, (3) methyl, and (4) methoxy; R 4 , R 5 , R 6 , R 7 , Y, and Z are each hydrogen; R 1 is: wherein R 8 is selected from R 15 , fluoro, and cyano, and R g is halogen; R 2 is selected from: (1) hydrogen, (2) fluoro, (3) methyl, and (4) hydroxyl; R 3 is selected from methyl, and hydroxyl; R 8 is selected from: (1) R 15 , (2) hydrogen, (3) halogen, (4) methyl, (5) —CF 3 , (6) cyano, and (7) SO 2 CH 3 ; provided that at least one of R 8 , R 9 , and R 10 is R 15 ; each R 15 is independently selected from: wherein R k is selected from hydrogen and methyl; or a pharmaceutically acceptable salt thereof.