(6R,7S)-7-[5-tert-Butoxycarbonylamino-5-(2,2,2-trichloro-ethoxycarbonyl)-pentanoylamino]-3-carbamoyloxymethyl-8-oxo-5-oxa-1-aza-bicyclo[4.2.0]oct-2-ene-2-carboxylic acid benzhydryl ester 在
溶剂黄146 、
锌 作用下,
生成
(6R,7S)-7-(5-tert-Butoxycarbonylamino-5-carboxy-pentanoylamino)-3-carbamoyloxymethyl-8-oxo-5-oxa-1-aza-bicyclo[4.2.0]oct-2-ene-2-carboxylic acid benzhydryl ester