Patent ID: 8071591

Claim:
A compound of Formula (I): or a pharmaceutically acceptable salt thereof, wherein R 1 is lower alkyl; R 2 is hydrogen or lower alkyl; m is 1, 2 or 3; and n is 1 or 2; Ar is aryl or heteroaryl which is optionally substituted with one to three substituents, each independently selected from Q groups; wherein Q is halo, hydroxy, cyano, nitro, oxo, thioxo, hydroxycarbonyl, alkyl, haloalkyl, alkenyl, alkynyl, cycloalkyl, heterocyclyl, aryl, heteroaryl, aralkyl, heteroaralkyl, alkoxy, haloalkoxy, cycloalkoxy, heterocyclyloxy, aryloxy, heteroaryloxy, aralkyloxy, heretoaralkyloxy, alkylcarbonyl, arylcarbonyl, heteroarylcarbonyl, alkoxycarbonyl, aryloxycarbonyl, aralkyloxycarbonyl, unsubstituted or substituted aminocarbonyl, alkylcarbonyloxy, arylcarbonyloxy, aralkylcarbonyloxy, alkoxycarbonyloxy, aryloxycarbonyloxy, aralkyloxycarbonyloxy, unsubstituted or substituted aminocarbonyloxy, unsubstituted or substituted amino, alkylthio, cycloalkylthio, arylthio, heteroarylthio, aralkylthio, heteroaralkylthio, alkylsulfinyl, cycloalkylsulfinyl, arylsulfinyl, heteroarylsulfinyl, aralkylsulfinyl, heteroaralkylsulfinyl, alkylsulfonyl, cycloalkylsulfonyl, arylsulfonyl, heteroarylsulfonyl, aralkylsulfonyl, heteroaralkylsulfonyl, alkoxysulfonyl, aryloxysulfonyl, unsubstituted or substituted aminosulfonyl, or hydroxysulfonyl.