Acetic acid (8R,9S,10R,13S,14S,17S)-17-(tert-butyl-dimethyl-silanyloxy)-10,13-dimethyl-3-oxo-2,3,6,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-2-yl ester 、
乙烯基溴化镁 以
四氢呋喃 为溶剂,
反应 3.0h,
生成
17-(tert-butyldimethylsilanyloxy)-10,13-dimethyl-3-vinyl-2,3,6,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthrene-2,3-diol