(6
R)-3-acetoxymethyl-4-(
Z)-benzylsulfanylmethylene-8-oxo-7
t-(2-thiophen-2-yl-acetylamino)-(6
rH)-5-thia-1-aza-bicyclo[4.2.0]oct-2-ene-2-carboxylic acid 2,2,2-trichloro-ethyl ester 在
溶剂黄146 、
锌 作用下,
生成
3-Acetoxymethyl-2-<(Z)-benzylmercaptomethylen>-7-<2>thienylacetylamino-3-cephem-4-carbonsaeure