(2R,5R,9R,10R,13R,14R,17R)-2-Bromo-17-((R)-1,5-dimethyl-hexyl)-4,4,10,13,14-pentamethyl-1,2,4,5,6,9,10,11,12,13,14,15,16,17-tetradecahydro-cyclopenta[a]phenanthren-3-one 生成
(5R,9R,10R,13R,14R,17R)-17-((R)-1,5-Dimethyl-hexyl)-4,4,10,13,14-pentamethyl-4,5,6,9,10,11,12,13,14,15,16,17-dodecahydro-cyclopenta[a]phenanthren-3-one