The present invention provides uses of the compounds represented by formula (I), pharmaceutically acceptable salts, solvates thereof or a pharmaceutical composition comprising any one of them for lowering uric acid, anti-inflammation, preventing or treating uric acid or gout diseases, especially uses in the preparation of medicaments for the treatment or prevention of hyperuricemia, gout, gout inflammation, pain, and uric acid nephropathy. (In formula (I), R1 is selected from hydrogen or C1-4 alkyl and so on, R2 is selected from C1-10 alkyl and so on, and R3 is selected from halogen atoms and so on.)本發明提供式(I)所示化合物、其藥學上可接受的鹽、其溶劑化物或者含有它們中的任何一種的藥物組合物於降低尿酸、抗炎的用途以及預防或治療尿酸性或痛風性疾病的用途，特別是在製備用於治療或預防高尿酸血症、痛風、痛風性炎症、疼痛和尿酸性腎病的藥物中的用途：其中R1選自氫或C1-4烷基等，R2選自C1-10烷基等，R3選自鹵素原子等。
