3α,5-cyclo-6β-methoxy-23-iodonorcholane 、
3-甲基-2-戊酮 在
lithium diisopropyl amide 作用下,
以
四氢呋喃 为溶剂,
反应 2.0h,
生成 、
(3R,6R)-3-Ethyl-6-((1aR,3aR,3bS,5aR,6R,8aS,8bS,10R,10aR)-10-methoxy-3a,5a-dimethyl-hexadecahydro-cyclopenta[a]cyclopropa[2,3]cyclopenta[1,2-f]naphthalen-6-yl)-3-methyl-heptan-2-one 、 (3R,6R)-3-Ethyl-6-((1aR,3aR,3bS,5aR,6R,8aS,8bS,10R,10aR)-10-methoxy-3a,5a-dimethyl-hexadecahydro-cyclopenta[a]cyclopropa[2,3]cyclopenta[1,2-f]naphthalen-6-yl)-3-methyl-heptan-2-one