3beta-胆甾烷醇 、 tetraphenylbismuth trifluoroacetate 以
苯 为溶剂,
反应 36.0h,
以25%的产率得到[(3S,8R,9S,10S,13R,14S,17R)-10,13-dimethyl-17-[(2R)-6-methylheptan-2-yl]-2,3,4,5,6,7,8,9,11,12,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-3-yl] 2,2,2-trifluoroacetate