{2-[(5-Bromo-thiophene-2-carbonyl)-amino]-ethyl}-carbamic acid (3S,8S,9S,10R,13R,14S,17R)-17-((R)-1,5-dimethyl-hexyl)-10,13-dimethyl-2,3,4,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-1H-cyclopenta[a]phenanthren-3-yl ester 、
2,2'-联二噻吩 在
bis-triphenylphosphine-palladium(II) chloride
正丁基锂 、
三丁基氯化锡 作用下,
以
乙醚 、
正己烷 、
N,N-二甲基甲酰胺 为溶剂,
反应 25.0h,
以2.9 g的产率得到[(3S,8S,9S,10R,13R,14S,17R)-10,13-dimethyl-17-[(2R)-6-methylheptan-2-yl]-2,3,4,7,8,9,11,12,14,15,16,17-dodecahydro-1H-cyclopenta[a]phenanthren-3-yl] N-[2-[[5-[5-[5-[5-[2-[[(3S,8S,9S,10R,13R,14S,17R)-10,13-dimethyl-17-[(2R)-6-methylheptan-2-yl]-2,3,4,7,8,9,11,12,14,15,16,17-dodecahydro-1H-cyclopenta[a]phenanthren-3-yl]oxycarbonylamino]ethylcarbamoyl]thiophen-2-yl]thiophen-2-yl]thiophen-2-yl]thiophene-2-carbonyl]amino]ethyl]carbamate