Carboxylic acid substituted hetero-aromatic ring derivatives as well as preparation method and application thereof

The invention relates to carboxylic acid substituted hetero-aromatic ring derivatives and pharmaceutical composition containing the compounds. The compounds or the pharmaceutical composition can be used for inhibiting xanthine oxidase and urate anion transporters 1. The invention further relates to a method for preparing the compounds and the pharmaceutical composition and an application of the compounds and the pharmaceutical composition in treatment or prevention of diseases, related to too high blood uric acid value, of mammals, especially human.