(5S,6S)-3-Ethylsulfanyl-7-oxo-6-[(R)-1-(2,2,2-trichloro-ethoxycarbonyloxy)-ethyl]-4-thia-1-aza-bicyclo[3.2.0]hept-2-ene-2-carboxylic acid allyl ester 在
锌 作用下,
以
甲苯 为溶剂,
生成
(5R,6S)-6-((R)-1-Hydroxy-ethyl)-7-oxo-4-thia-1-aza-bicyclo[3.2.0]hept-2-ene-2-carboxylic acid allyl ester