Patent ID: 7173133

Claim:
A compound of formula I wherein A-B is â€”CH 2 â€”CH 2 â€”, â€”CH 2 â€”Oâ€” or â€”Oâ€”CH 2 â€”; X is hydrogen or hydroxy; R 1 is aryl, optionally substituted by one or two substituents selected from the group consisting of halogen, lower alkyl, cyano, CF 3 , â€”OCF 3 , lower alkoxy, â€”SO 2 -lower alkyl, and heteroaryl, R 2 is aryl, optionally substituted by one or two substituents selected from the group consisting of halogen, lower alkyl, CF 3 , and lower alkoxy; R 3 is hydrogen or lower alkyl; n is 0, 1 or 2; or a pharmaceutically active salt thereof.