The present invention relates to the Xin Sulfone compounds of the formula (I) as 5-HT6 receptors ligands and its derivative, prodrug, tautomer, stereoisomer, polymorph, solvate, hydrate, metabolin, N- oxides, officinal salt and include their compositions. The invention further relates to prepare above-mentioned noval chemical compound and its derivative, prodrug, tautomer, stereoisomer, polymorph, solvate, hydrate, metabolin, N- oxides, officinal salt and comprising the method for their compositions. These compounds can treat/prevent the relevant various diseases of 5-HT6 function of receptors with what.本發明涉及作爲5-HT6受體配體的式(I)的新的碸化合物及其衍生物、前藥、互變異構體、立體異構體、多晶型物、溶劑化物、水合物、代謝物、N-氧化物、可藥用鹽以及包含它們的組合物。本發明還涉及製備上述新化合物及其衍生物、前藥、互變異構體、立體異構體、多晶型物、溶劑化物、水合物、代謝物、N-氧化物、可藥用鹽以及包含它們的組合物的方法。這些化合物可用於治療/預防5-HT6受體功能相關的多種病症。