2-spiro(2',2'-diphenylcyclopropane)-7α-methoxy-3-methyl-4-(4-tert-butoxycarbonylmethyl)piperazinocarbonyl-3-cephem-1,1-dioxide 在
甲酸 作用下,
反应 2.0h,
生成 2-spiro(2',2'-diphenylcyclopropane)-7α-methoxy-3-methyl-4-(4-N-carboxymethyl)piperazinocarbonyl-3-cephem-1,1-dioxide