The present invention provides a method for producing a xanthine oxidase inhibitor, which is a therapeutic agent for hyperuricemia, or intermediates of the same, said method being efficient and using a short process. The present invention is a novel coupling method for obtaining a compound represented by formula (3) by bringing about a coupling reaction between a compound represented by formula (1) and a compound represented by formula (2), in the presence of a palladium compound, a ligand capable of coordinating to the palladium compound, a base, a C
1
-C
40
carboxylic acid, and at least one kind of additive.
本发明提供了一种生产
黄嘌呤氧化酶
抑制剂的方法,该
抑制剂是治疗高
尿酸血症的药物,或者其中间体,该方法高效且使用流程简短。本发明是一种新型耦合方法,通过在
钯化合物、能够配位到
钯化合物的
配体、碱、C1-C40
羧酸和至少一种添加剂的存在下,在式(1)所代表的化合物和式(2)所代表的化合物之间引发耦合反应,从而获得式(3)所代表的化合物。