benzyl (3R*,4R*,5R*)-5-(2'-tert-butyldimethylsilyloxyethyl)-3-p-methoxyphenyl-2-phenylisoxazolidine-4-carboxylate 在
palladium on activated charcoal
氢气 作用下,
以
乙醇 为溶剂,
反应 2.0h,
以85%的产率得到(2R*,3R*)-3-hydroxy-5-tert-butyldimethylsilyloxy-2-(R*-p-methoxyphenyl-N-phentlaminomethyl)-pentanoic acid