(2S,5R,6R)-6-{2-[2-(2-Benzyloxycarbonylamino-ethoxy)-ethoxy]-ethanesulfonylamino}-3,3-dimethyl-7-oxo-4-thia-1-aza-bicyclo[3.2.0]heptane-2-carboxylic acid methoxymethyl ester 在
potassium permanganate 、
溶剂黄146 作用下,
反应 1.0h,
以86%的产率得到(2S,5R,6R)-6-{2-[2-(2-Benzyloxycarbonylamino-ethoxy)-ethoxy]-ethanesulfonylamino}-3,3-dimethyl-4,4,7-trioxo-4λ6-thia-1-aza-bicyclo[3.2.0]heptane-2-carboxylic acid methoxymethyl ester