(2S,6S)-7-Hydroxy-2-((3S,8S,9S,10R,13S,14S,17R)-3-hydroxy-10,13-dimethyl-2,3,4,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-17-yl)-6-methyl-heptan-3-one 在
sodium tetrahydroborate 作用下,
以
乙醇 为溶剂,
生成 (2S,5R,6S)-6-((3S,8S,9S,10R,13S,14S,17R)-3-Hydroxy-10,13-dimethyl-2,3,4,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-17-yl)-2-methyl-heptane-1,5-diol 、
(22S,25S)-胆甾-5-烯-3beta,22,26-三醇