1-{(4R,5R)-5-[(S)-2-(tert-Butyl-dimethyl-silanyloxy)-1,3-dimethyl-pent-4-enyl]-2,2,4-trimethyl-oxazolidin-3-yl}-ethanone 在
臭氧 、
三苯基膦 作用下,
以
甲醇 、
二氯甲烷 为溶剂,
以86%的产率得到(2R,3R,4S)-4-[(4R,5R)-3-acetyl-2,2,4-trimethyl-1,3-oxazolidin-5-yl]-3-[tert-butyl(dimethyl)silyl]oxy-2-methylpentanal