(2S,3R)-2-((S)-1-Benzyloxy-ethyl)-3-(tert-butoxycarbonyl-oxalyl-amino)-5-(tert-butyl-diphenyl-silanyloxy)-pentanoic acid 在
sodium methylate 作用下,
以
甲醇 为溶剂,
反应 1.5h,
以240 mg的产率得到(R)-2,3,4-trideoxy-3-<<(1,1-dimethylethoxy)carbonyl>amino>-5-O-<(1,1-dimethylethyl)diphenylsilyl>-2-<1-(phenylmethoxy)ethyl>-D-erythropentanoic acid