(6
R)-3-acetoxymethyl-7
c-methylsulfanyl-8-oxo-7
t-(2-phenyl-acetylamino)-(6
rH)-5-thia-1-aza-bicyclo[4.2.0]oct-2-ene-2-carboxylic acid
tert-butyl ester 在
palladium on activated charcoal
mercury(II) diacetate 、
氢气 作用下,
以
乙酸乙酯 为溶剂,
生成
(6R)-7c-methoxy-3-methyl-8-oxo-7t-(2-phenyl-acetylamino)-(6rH)-5-thia-1-aza-bicyclo[4.2.0]oct-2-ene-2-carboxylic acid tert-butyl ester