胆固醇 、
3-cyanocarbonyl-3'-methoxycarbonyl-2,2'-binaphthalene 在
4-二甲氨基吡啶 作用下,
以
乙腈 为溶剂,
以96%的产率得到(3S,8S,9S,10R,13R,14S,17R)-10,13-dimethyl-17-[(2R)-5-methylhexan-2-yl]-2,3,4,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-3-yl methyl 2,2'-binaphthalene-3,3'-dicarboxylate