(3R,5R,7R,8R,9S,10S,12S,13R,14S,17R)-17-((R)-4-Allyloxy-1-methyl-butyl)-3-(tert-butyl-dimethyl-silanyloxy)-10,13-dimethyl-hexadecahydro-cyclopenta[a]phenanthrene-7,12-diol 在
Grubbs catalyst first generation 4-二甲氨基吡啶 、
四丁基氟化铵 、
N,N'-二环己基碳二亚胺 作用下,
以
甲苯 为溶剂,
反应 1.0h,
生成 (1R,3R,4R,5S,7S,8R,9S,12R,13R,26R,27R,30S,31R,32S,34S,35R,36R,38R,39S,42R,53R,56S)-3,7,32,36-tetrahydroxy-8,13,26,31,39,56-hexamethyl-17,22,43,52-tetraoxadecacyclo[51.3.1.138,42.04,9.05,56.08,12.027,31.030,35.034,39.045,50]octapentaconta-19,45,47,49-tetraene-44,51-dione