[(8R,9S,13S,14S)-2-methoxy-13-methyl-17-oxo-7,8,9,11,12,14,15,16-octahydro-6H-cyclopenta[a]phenanthren-3-yl]cyanamide 在
sodium tetrahydroborate 作用下,
以
甲醇 为溶剂,
生成
[(8R,9S,13S,14S,17S)-17-hydroxy-2-methoxy-13-methyl-6,7,8,9,11,12,14,15,16,17-decahydrocyclopenta[a]phenanthren-3-yl]cyanamide