ethyl 1-(6-chloropyrimidin-4-yl)-3,5-dimethyl-1H-pyrazole-4-carboxylate 、
1,4-dimethyl-3-[4-(trifluoromethyl)phenyl]-1H-pyrazol-5-amine 在
tris-(dibenzylideneacetone)dipalladium(0) 、
sodium phenoxide 、
4,5-双二苯基膦-9,9-二甲基氧杂蒽 作用下,
以
1,4-二氧六环 为溶剂,
以44%的产率得到ethyl 1-[6-({1,4-dimethyl-3-[4-(trifluoromethyl)phenyl]-1H-pyrazol-5-yl}amino)pyrimidin-4-yl]-3,5-dimethyl-1H-pyrazole-4-carboxylate