2-甲氧基-2-丙酸甲酯 、
(+)-(5S,8R,9S,10S,13R,14S,17R)-10,13-dimethyl-17-((R)-6-methylheptan-2-yl)-4,5,6,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-3-yltrifluoromethanesulfonate 在
palladium diacetate
四丁基氯化铵 、
碳酸氢钠 、
三苯基膦 作用下,
以
N,N-二甲基甲酰胺 为溶剂,
反应 24.0h,
以72%的产率得到(Z)-3-[(8R,9S,10S,13R,14S,17R)-17-((R)-1,5-Dimethyl-hexyl)-10,13-dimethyl-4,5,6,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-3-yl]-2-methoxy-acrylic acid methyl ester