(5R,6S)-6-[(R)-1-(tert-Butyl-dimethyl-silanyloxy)-ethyl]-7-oxo-3-thioxo-4-thia-1-aza-bicyclo[3.2.0]heptane-2-carboxylic acid allyl ester 在
N,N-二异丙基乙胺 、
hydroxylamine-O-sulfonic acid 作用下,
以
氯仿 为溶剂,
反应 0.5h,
以75%的产率得到(5R,6S)-3-Aminosulfanyl-6-[(R)-1-(tert-butyl-dimethyl-silanyloxy)-ethyl]-7-oxo-4-thia-1-aza-bicyclo[3.2.0]hept-2-ene-2-carboxylic acid allyl ester