Patent ID: 7683079

Claim:
A compound of the formula I: wherein: R 1 is selected from the group consisting of phenyl, unsubstituted or mono-, di-, or trisubstituted, independently, by lower alkyl, lower alkoxy, phenyl, phenoxy, halogen, or lower halogenalkyl; and —(CHR 3 ) m -phenyl, wherein m is 1, 2, or 3 and phenyl being unsubstituted or mono-, di, or trisubstituted, independently, by lower alkyl, halogen, lower halogenalkyl, lower alkoxy, phenyl or phenoxy and wherein R 3 is hydrogen, lower alkyl or phenyl; R 2 is selected from the group consisting of phenyl, unsubstituted or mono-, di-, or trisubstituted, independently, by lower alkyl, halogen, lower halogenalkyl, or lower alkoxy; naphthyl, unsubstituted or mono-, di-, or trisubstituted, independently, by lower alkyl, halogen, lower halogenalkyl, or lower alkoxy; and pharmaceutically acceptable salts thereof, provided that 1-benzyl-3-(3,4-dimethoxyphenyl)-4-piperidylamine and 1-benzyl-3-phenyl-4-piperidylamine are excluded.