N,N-二甲基氯烯亚胺 、
(8R,9S,10R,13S,14S,17S)-10,13-dimethyl-3-trimethylsilyloxy-2,7,8,9,11,12,14,15,16,17-decahydro-1H-cyclopenta[a]phenanthren-17-ol 以
N,N-二甲基甲酰胺 为溶剂,
以76%的产率得到(6R,8R,9S,10R,13S,14S,17S)-6-[(dimethylamino)methyl]-17-hydroxy-10,13-dimethyl-1,2,6,7,8,9,11,12,14,15,16,17-dodecahydrocyclopenta[a]phenanthren-3-one