Heterocyclic compound, preparation method and application of heterocyclic compound in medicine

The invention relates to a heterocyclic compound, a preparation method and application of the heterocyclic compound in medicine, in particular to a heterocyclic compound for preventing and/or treating hyperuricemia and gout, a preparation method and application of the heterocyclic compound in medicine. Specifically, the invention relates to a compound as shown in a formula (I) and/or a formula (II) or a tautomer and a pharmaceutically acceptable salt thereof. The invention also relates to a preparation method of the compound as shown in the formula (I) and/or the formula (II) or the tautomer and the pharmaceutically acceptable salt thereof, and a method and application of the compound or the tautomer and the pharmaceutically acceptable salt thereof in treating hyperuricemia and gout. 本发明涉及一种杂环化合物、制备方法及其在医药上的应用，特别是涉及一种预防和/或治疗高尿酸血症和痛风的杂环化合物、制备方法及其在医药上的应用。具体而言，本发明涉及一种如式(I)和/或式(II)所示的化合物或其互变异构体及其药学上可接受的盐。本发明还涉及一种式(I)和/或式(II)所示的化合物或其互变异构体及其药学上可接受的盐的制备方法及其治疗高尿酸血症和痛风的方法和用途。