A salt of piperazine-substituted benzothiophenes.

Abstract

The present invention provides a salt of piperazine-substituted benzothiophene represented by the general formula (1) represents -NH-CH2-, -N=CH-, -CH2-NHor -CH=N-); the ring Q may have at least one substituent selected from the group consisting of a lower alkyl group, a lower alkenyl group, etc.; R2 represents a hydrogen atom or a lower alkyl group; and A represents -O-A1- (wherein Al represents an alkylene group which may be substituted with a hydroxy group (wherein the alkylene group may contain one oxygen atom) or a lower alkenylene group) or a lower alkylene group). The salts of the compound of the present invention have a wide treatment spectrum for mental disorders including central nervous system disorders, no side effects and high safety.