16-((E)-4-chlorobenzylidene)-3-hydroxy-10,13-dimethyl-1,2,3,4,7,8,9,10,11,12,13,14,15,16-tetradecahydro-17H-cyclopenta[a]phenanthren-17-one 、
sodium ethanolate 、
丙二腈 以
乙醇 为溶剂,
反应 7.0h,
以84%的产率得到(2S,4aR,4bS,6aS,11aS,11bR)-10-(4-Chloro-phenyl)-8-ethoxy-2-hydroxy-4a,6a-dimethyl-2,3,4,4a,4b,5,6,6a,11,11a,11b,12-dodecahydro-1H-9-aza-indeno[2,1-a]phenanthrene-7-carbonitrile