Patent ID: 7671238

Claim:
A compound of formula I: or a pharmaceutically acceptable salt thereof; wherein: n is 1 or 2; Ar 1 is phenyl or naphthyl, wherein said phenyl or naphthyl is optionally substituted with up to 4 groups R 5 ; Ar 2 is phenyl or naphthyl, wherein said phenyl or naphthyl is optionally substituted with up to 4 groups R 5 ; R 1 is hydrogen or C 1 -C 3 alkyl; each R 2 is, independently, hydrogen or C 1 -C 3 alkyl; each R 3 is, independently, hydrogen or C 1 -C 3 alkyl; each R 4 is, independently, hydrogen or C 1 -C 4 alkyl; each R 5 is, independently, C 1 -C 3 alkyl, C 1 -C 3 alkoxy, halo, CF 3 , OCF 3 , hydroxy, nitro, nitrile, C 2 -C 4 alkenyl, or C 2 -C 5 alkynyl; provided that said compound of formula I is other than 1-[(2-methoxyphenyl)(methyl)amino]-3-(methylamino)-1-phenylpropan-2-ol.