(R)-(N-methyl-hydrazino)-phenyl-acetyl chloride; hydrochloride 、 trimethylsilyl (7R)-3-(acetoxymethyl)-7-amino-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate 在
methyloxirane 作用下,
以
乙腈 为溶剂,
反应 2.0h,
生成 (R)-3-Acetoxymethyl-7-[(R)-2-(N-methyl-hydrazino)-2-phenyl-acetylamino]-8-oxo-5-thia-1-aza-bicyclo[4.2.0]oct-2-ene-2-carboxylic acid