7-Oxo-6-(2-phenoxy-acetylamino)-4-thia-1-aza-bicyclo[3.2.0]heptane-2,3,3-tricarboxylic acid dimethyl ester 4-nitro-benzyl ester 在
palladium on activated charcoal
氢气 作用下,
以
四氢呋喃 为溶剂,
以28%的产率得到7-Oxo-6-(2-phenoxy-acetylamino)-4-thia-1-aza-bicyclo[3.2.0]heptane-2,3,3-tricarboxylic acid dimethyl ester