(3R,5R,8R,9R,10S,13S,14S,17S)-17-[(1R)-1-aminoethyl]-13-methyl-3-propyl-2,4,5,6,7,8,9,10,11,12,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-3-ol 、
3-bromo-2-methyl-6-(3-methyl-1H-pyrazol-1-yl)pyridine 在
potassium tert-butylate 、 palladium diacetate 、
R-(+)-1,1'-联萘-2,2'-双二苯膦 作用下,
以
甲苯 为溶剂,
反应 18.0h,
以27.2%的产率得到(3R,5R,8R,9R,10S,13S,14S,17S)-13-methyl-17-((R)-1-((2-methyl-6-(3-methyl-1H-pyrazol-1-yl)pyridin-3-yl)amino)ethyl)-3-propylhexadecahydro-1H-cyclopenta[a]phenanthren-3-ol