Benzothiazole-4,7-dione and benzoxazole-4,7-dione substituted at 5- or 6-position and process for producing the same

摘要

A targetted production method for benzothiazole-4,7-dione and benzoxazole-4,7-dione derivatives, mono-substituted in the 5 or 6 position with an amino group, itself optionally substituted.