(2R,3S,4S)-2-{(4S,5S,6S)-6-[(R)-2-(tert-Butyl-diphenyl-silanyloxy)-1-methyl-ethyl]-2,2,5-trimethyl-[1,3]dioxan-4-yl}-4-methyl-hex-5-en-3-ol 在
1,2-dimethyl-2-imidazolidinone 、 tin(ll) chloride 作用下,
以
苯 为溶剂,
反应 0.02h,
生成 (2R,3S)-2-{(4S,5S,6S)-2,2,5-Trimethyl-6-[(R)-1-((4R,5S)-2,2,5-trimethyl-[1,3]dioxan-4-yl)-ethyl]-[1,3]dioxan-4-yl}-hex-5-en-3-ol