2-(1H-pyrazol-4-yl)oxazole 、 2-bromo-1-((3R,5R,8S,10R,13S,14S,17S)-10-fluoro-3-hydroxy-3,13-dimethylhexadecahydro-1H-cyclopenta[a]phenanthren-17-yl)ethan-1-one 在
potassium carbonate 作用下,
以
四氢呋喃 为溶剂,
反应 16.0h,
以20%的产率得到1-((3R,5R,8S,9S,10R,13S,14S,17S)-10-fluoro-3-hydroxy-3,13-dimethylhexadecahydro-1H-cyclopenta[a]phenanthren-17-yl)-2-(4-(oxazol-2-yl)-1H-pyrazol-1-yl)ethan-1-one