三甲基氯硅烷 、
(2S,3R,4S,6R)-4-(dimethylamino)-2-(((1R,3R,6R,7S,8S,9R,10R,12R,13S,17S)-3-ethyl-7,10-dihydroxy-6,8,10,12,15,15,17-heptamethyl-2-methylene-5-oxo-4,14,16-trioxabicyclo[11.3.1]heptadecan-9-yl)oxy)-6-methyltetrahydro-2H-pyran-3-yl benzoate 在
咪唑 作用下,
以
二氯甲烷 为溶剂,
反应 1.0h,
以98%的产率得到(2S,3R,4S,6R)-4-(dimethylamino)-2-(((1R,3R,6R,7S,8R,9R,10R,12R,13S,17S)-3-ethyl-10-hydroxy-6,8,10,12,15,15,17-heptamethyl-2-methylene-5-oxo-7-((trimethylsilyl)oxy)-4,14,16-trioxabicyclo[11.3.1]heptadecan-9-yl)oxy)-6-methyltetrahydro-2H-pyran-3-yl benzoate