(E,2R,3R)-2-[(4R,6R)-6-[[(4R)-2,2-dimethyl-1,3-dioxan-4-yl]methyl]-2,2-dimethyl-1,3-dioxan-4-yl]-4-methyl-6-[(4R,5S,6R)-2,2,5-trimethyl-6-[(1S)-1-[(4S,5R)-2,2,5-trimethyl-1,3-dioxan-4-yl]ethyl]-1,3-dioxan-4-yl]hex-4-en-3-ol 、
叔丁基二甲基氯硅烷 在
咪唑 作用下,
以
N,N-二甲基甲酰胺 为溶剂,
反应 72.0h,
以88%的产率得到tert-butyl-[(E,2S,3R)-2-[(4R,6R)-6-[[(4R)-2,2-dimethyl-1,3-dioxan-4-yl]methyl]-2,2-dimethyl-1,3-dioxan-4-yl]-4-methyl-6-[(4R,5S,6R)-2,2,5-trimethyl-6-[(1S)-1-[(4S,5R)-2,2,5-trimethyl-1,3-dioxan-4-yl]ethyl]-1,3-dioxan-4-yl]hex-4-en-3-yl]oxy-dimethylsilane