(2R,4R)-2-[(4S,5S)-3-acetyl-4-(3,5-difluorobenzyl)-2,2-dimethyloxazolidin-5-yl]-4-hydroxy-4-trifluoromethyl-pyrrolidine-1-carboxylic acid tert-butyl ester 、
1-溴-3-甲基-2-丁烯 在
sodium hydride 作用下,
以
DMF (N,N-dimethyl-formamide) 为溶剂,
反应 0.83h,
以84%的产率得到(2R,4R)-2-[(4S,5S)-3-acetyl-4-(3,5-difluoro-benzyl)-2,2-dimethyl-oxazolidin-5-yl]-4-(3-methyl-but-2-enyloxy)-4-trifluoromethyl-pyrrolidine-1-carboxylic acid tert-butyl ester