(6
R)-3-methyl-8-oxo-7
t-(2-phenoxy-acetylamino)-4-(
Z)-phenylsulfanylmethylene-(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-Methyl-7-phenoxyacetylamino-2-<(Z)-phenylmercaptomethylen>-3-cephem-4-carbonsaeure