[(2S,3R,5S)-2-[(1S,3R)-4-[tert-butyl(diphenyl)silyl]oxy-1-hydroxy-3-methylbutyl]-5-[(4R,5S)-5-ethenyl-2,2-dimethyl-1,3-dioxolan-4-yl]oxolan-3-yl] (2S,3S,4R,5S,6R)-3-[tert-butyl(dimethyl)silyl]oxy-4-[(4-methoxyphenyl)methoxy]-2,5,6-trimethyloct-7-enoate 、
叔丁基二甲硅基三氟甲磺酸酯 在
2,6-二甲基吡啶 作用下,
以
二氯甲烷 为溶剂,
以95%的产率得到[(2R,3R,5S)-2-[(1S,3R)-1-[tert-butyl(dimethyl)silyl]oxy-4-[tert-butyl(diphenyl)silyl]oxy-3-methylbutyl]-5-[(4R,5S)-5-ethenyl-2,2-dimethyl-1,3-dioxolan-4-yl]oxolan-3-yl] (2S,3S,4R,5S,6R)-3-[tert-butyl(dimethyl)silyl]oxy-4-[(4-methoxyphenyl)methoxy]-2,5,6-trimethyloct-7-enoate