NOVEL BENZOTHIOPHENE DERIVATIVES

摘要

The present invention relates to novel benzothiophene derivatives represnted by the following formula (I) or salts thereof, inhibitors of steroid 17 alpha -hydroxylase and/or C17-20 lyase, and pharmaceutical compositions containing the benzothiophene derivative or the salt. <CHEM> wherein Ar shows a substituted or unsubstituted aromatic heterocyclic group; R shows a hydroxyl group, lower alkyl group, lower alkyloxy group, halogen atom, carboxyl group, lower alkyloxycarbonyl group, carbamoyl group, amino group, amino group which may be substituted or not substituted with one or more substituents selected from a lower alkyl group and lower acyl group, cyano group, substituted or unsubstituted phenyl group, substituted or unsubstituted phenoxy group, substituted or unsubstituted phenyl lower alkyl group, substituted or unsubstituted phenyl lower alkyloxy group, or substituted or unsubstituted aromatic heterocyclic group.