3β-methoxy-5,6α-epoxycholestane 在
selenium 、
三乙基硼氢化锂 作用下,
以
四氢呋喃 为溶剂,
以82%的产率得到(3S,5R,6R,8S,9S,10R,13R,14S,17R)-6-[[(3S,5R,6R,8S,9S,10R,13R,14S,17R)-5-hydroxy-3-methoxy-10,13-dimethyl-17-[(2R)-6-methylheptan-2-yl]-1,2,3,4,6,7,8,9,11,12,14,15,16,17-tetradecahydrocyclopenta[a]phenanthren-6-yl]diselanyl]-3-methoxy-10,13-dimethyl-17-[(2R)-6-methylheptan-2-yl]-1,2,3,4,6,7,8,9,11,12,14,15,16,17-tetradecahydrocyclopenta[a]phenanthren-5-ol