(S)-4-Benzyloxycarbonylamino-3-hydroxy-2,2,5-trimethyl-hexanoic acid ethyl ester 在
palladium on activated charcoal
重铬酸吡啶 、
正丁基锂 、 molecular sieve 、
氢气 、
sodium ethanolate 作用下,
以
乙醇 为溶剂,
生成 ((S)-2-{(4S,5S)-5-[(R)-2-((R)-5-Isopropyl-3,3-dimethyl-2,4-dioxo-pyrrolidin-1-yl)-1-methyl-2-oxo-ethyl]-2,2,4-trimethyl-oxazolidin-3-yl}-1-methyl-2-oxo-ethyl)-methyl-carbamic acid tert-butyl ester