(8R,9S,13S,14S)-13-methyl-17-oxo-7,8,9,11,12,13,14,15,16,17-decahydro-6H-cyclopenta[a]phenanthren-3-yl 4-nitrobenzoate 在
sodium tetrahydroborate 、
对甲苯磺酸 作用下,
以
四氢呋喃 、
甲苯 为溶剂,
生成 4-Nitro-benzoic acid (8R,9S,13S,14S,17S)-17-[((E)-cyclooct-1-enyl)oxy]-13-methyl-7,8,9,11,12,13,14,15,16,17-decahydro-6H-cyclopenta[a]phenanthren-3-yl ester