Agent for the treatment of disorders of the cerebral neurotransmitter system

摘要

A therapeutic agent for disorders of cerebro-neural transmission system containing a compound of the formula [I] or salts thereof as an active ingredient, wherein Ar or Ar min is phenyl or pyridyl, which can be substituted by lower alkyl, lower alkoxy, halogen or lower alkylenedioxy ; R is hydrogen, lower alkyl, lower alkoxy, halogen or lower alkylenedioxy ; A is straight or branched alkylene having 1 to 6 carbon atoms ; and n is 0 or 1; and a method of preparation therefore are disclosed.