3β-(But-3-enyl)-5α-cholestan-3α-ol 在
碘 、
mercury(II) oxide 作用下,
以
苯 为溶剂,
反应 2.33h,
以93%的产率得到(3S,5S,5'R,8R,9S,10S,13R,14S,17R)-5'-(iodomethyl)-10,13-dimethyl-17-[(2R)-6-methylheptan-2-yl]spiro[1,2,4,5,6,7,8,9,11,12,14,15,16,17-tetradecahydrocyclopenta[a]phenanthrene-3,2'-oxolane]