(S)-2-((S)-9-Benzyloxycarbonylmethyl-8-oxo-6,7,8,9-tetrahydro-5-oxa-9-aza-benzocyclohepten-7-ylamino)-4-(tetrahydro-pyran-4-yl)-butyric acid ethyl ester 在
palladium on activated charcoal
盐酸 、
氢气 作用下,
以
乙醇 为溶剂,
以90%的产率得到3(S)-[1(S)-ethoxycarbonyl-3-(3,4,5,6-tetrahydro-2H-pyran-4-yl)propyl]amino-4-oxo-2,3,4,5-tetrahydro-1,5-benzoxazepine-5-acetic acid hydrochloride