(2S,4R)-4-[Benzyloxy-((S)-2-benzyloxycarbonyl-2-benzyloxycarbonylamino-ethoxy)-phosphoryloxy]-pyrrolidine-1,2-dicarboxylic acid dibenzyl ester 在
palladium on activated charcoal SP Sephadex (Na+ form) 、
氢气 、
溶剂黄146 作用下,
以95%的产率得到sodium (S)-2-amino-2-carboxyethyl ((3R,5S)-5-carboxypyrrolidin-3-yl) phosphate