PHENYLPIPERAZINE DERIVATIVES AND PROCESS FOR PRODUCING THE SAME

摘要

Phenylpiperazine derivatives of the formula: (I) wherein R1 is a hydrogen atom or a straight- or branched-chain saturated or unsaturated alkyl group having 1 to 8 carbon atoms which may be substituted at any position by a hydroxyl group, a carboxyl group, a lower alkoxycarbonyl group or an oxo group; and R2 is a hydrogen atom, a halogen atom, a lower alkyl group or a sulfamoyl group, and a process for producing the same are disclosed. The derivatives of the formula have alpha blocking and serotonin antagonizing activities and are useful as a drug.