[(2S,3R)-3-Acetoxymethyl-2-((R)-1-acetoxymethyl-2-trityloxy-ethoxy)-4-oxo-azetidin-1-yl]-acetic acid tert-butyl ester 在
palladium on activated charcoal
氢气 作用下,
以
乙醇 为溶剂,
反应 7.0h,
以62%的产率得到(3R,4S,1'R)-1-tert-Butoxycarbonylmethyl-3-acetoxymethyl-4-(1'-acetoxymethyl-2'-hydroxy)ethoxy-azetidinone-2