多酸是无机含氧酸 (如硫酸、磷酸、钨酸、钼酸等 )缩合而形成的缩合酸。多酸分成两类 :同多酸和杂多酸。杂多酸种类繁多 ,结构和电学性质更容易修饰 ,所以在医药领域的研究和应用更加广泛。国际上有多个课题组在研究多酸的药物化学。多酸的抗病毒和抗肿瘤活性已得到广泛关注。 Polyacids are condensed acids formed by the condensation of inorganic oxyacids (such as sulfuric acid, phosphoric acid, tungstic acid, molybdic acid, etc.). Poly acids fall into two categories: polyacids and heteropoly acids. Heteropolyacid variety, structural and electrical properties easier to modify, so in the field of medicine research and application more widely. There are several international research groups in the multi-acid drug chemistry. The antiviral and antitumor activities of polyacids have drawn much attention.