2-[(3R,5S,8S,9S,10R,13R,14S,17R)-17-((R)-1,5-Dimethyl-hexyl)-4-(4-methoxy-benzenesulfinylmethyl)-10,13-dimethyl-hexadecahydro-cyclopenta[a]phenanthren-3-yloxy]-tetrahydro-pyran 在
potassium carbonate 、
溶剂黄146 作用下,
以
xylene 为溶剂,
反应 37.0h,
生成
4-methylene-5α-cholestan-3α-ol