Patent ID: 8088936

Claim:
A compound of formula (I): wherein: R1 is lower alkyl, alkoxy, alkoyl, dimethylaminomethyl, cyanomethyl, benzyloxy, cyclopentylmethoxy, cyclopropanecarbonyl or cyclopentanecarbonyl; and R2 is benzo[1,3]dioxol, benzo[1,4]dioxin, benzothiazole, difluoro-benzo[1,3]dioxole, cycloalkyl, aryl, unsubstituted or mono-, di- or tri-substituted with halogen, hydroxy, alkoxy, lower alkyl, —CF 3 , —OCF 3 or methanesulfonyl, heteroaryl, unsubstituted or mono-, di- or tri-substituted with lower alkyl, halogen or hydroxy, N-aryl or indole, unsubstituted or substituted with lower alkyl, or a pharmaceutically acceptable salt thereof.