| abstract |
(57) [Summary] [Purpose] To provide a medicine for treating obsessive-compulsive disorder. ## STR1 ## Formula I Wherein m is 0, 1 or 2; R is halogen, lower alkyl, lower alkoxy, aryl lower alkoxy, hydroxy, nitro, amino, lower alkylamino or dilower alkylamino; R 1 is , H or lower alkyl; R 2 is H or lower alkyl; and R 3 is H, halogen or lower alkyl] or a pharmaceutically acceptable acid addition salt thereof as an active ingredient. Become. |