10,13-dimethyl-17-(5-methylhexan-2-yl)-2,3,4,7,8,9,11,12,14,15,16,17-dodecahydro-1H-cyclopenta[a]phenanthren-3-ol 在
barium permanganate 作用下,
以
乙腈 为溶剂,
反应 3.0h,
以90%的产率得到17-(1,4-Dimethyl-pentyl)-10,13-dimethyl-1,2,4,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-cyclopenta[a]phenanthren-3-one