3(S)-[5-(1-Benzyloxycarbonyl-4-piperidyl)-1(S)-ethoxycarbonylpentyl]amino-2-oxo-2,3,4,5-tetrahydro-1H-1-benzazepine-1-acetate 、
氢溴酸 以to give 0.03 g of 3(S)-[5-(4-piperidyl)-1(S)-carboxypentyl]amino-2-oxo-2,3,4,5-tetrahydro-1H-1-benzazepine-1-acetic acid as a colorless powder的产率得到3(S)-[5-(4-piperidyl)-1(S)-carboxypentyl]amino-2-oxo-2,3,4,5-tetrahydro-1H-1-benzazepine-1-acetic acid