ethyl 2-methyl-7-(3-{[3-(trifluoromethyl)benzoyl]amino}phenyl)pyrazolo[1,5-a]pyrimidine-3-carboxylate 、
2-氯-5-氨基苯乙酮 、
3-氨基-4-乙氧羰基吡唑 以
乙醚 为溶剂,
以ethyl 7-(2-chloro-5-{[3-(trifluoromethyl)benzoyl]amino}phenyl)pyrazolo[1,5-a]pyrimidine-3-carboxylate was obtained as a white solid after trituration with ether的产率得到ethyl 7-(2-chloro-5-{[3-(trifluoromethyl)benzoyl]amino}phenyl)pyrazolo[1,5-a]pyrimidine-3-carboxylate