(
R)-3-methyl-8-oxo-7-(2-oxo-3-phenyl-propylidene)-5-thia-1-aza-bicyclo[4.2.0]oct-2-ene-2-carboxylic acid benzhydryl ester 在
溶剂黄146 、
锌 作用下,
以
二氯甲烷 为溶剂,
生成
(6R)-3-methyl-8-oxo-7t-(2-oxo-3-phenyl-propyl)-(6rH)-5-thia-1-aza-bicyclo[4.2.0]oct-2-ene-2-carboxylic acid benzhydryl ester