3(R)-[1(S)-ethoxycarbonyl-2-{2-(4-piperidyl)ethoxy}ethyl]amino-4-oxo-2,3,4,5-tetrahydro-1,5-benzothiazepine-5-acetic acid dihydrobromide 生成
3(R)-[1(S)-carboxy-2-{2-(4-piperidyl)ethoxy}ethyl]amino-4-oxo-2,3,4,5-tetrahydro-1,5-benzothiazepine-5-acetic acid