ethyl 2,4-dihydroxy-8-trifluoromethyl-quinoline-3-carboxylate 、
2-氨基噻唑 在
溶剂黄146 、 crystals 作用下,
以
邻二甲苯 为溶剂,
反应 2.0h,
以to obtain 5.54 g of N-(2-thiazolyl)-2,4-dihydroxy-8-trifluoromethyl-quinoline-3-carboxamide in the form of colorless crystals melting at 260° C.的产率得到N-(2-thiazolyl)-2,4-dihydroxy-8-trifluoromethyl-quinoline-3-carboxamide