(R)-2-((S)-9-Benzyloxycarbonylmethyl-8-oxo-6,7,8,9-tetrahydro-5-oxa-9-aza-benzocyclohepten-7-ylamino)-5-ethyl-heptanoic acid ethyl ester 在
palladium on activated charcoal
盐酸 、
氢气 作用下,
以
乙醇 为溶剂,
以82%的产率得到(R)-2-((S)-9-Carboxymethyl-8-oxo-6,7,8,9-tetrahydro-5-oxa-9-aza-benzocyclohepten-7-ylamino)-5-ethyl-heptanoic acid ethyl ester; hydrochloride