PROBLEM TO BE SOLVED: To provide a method of producing a flavone derivative, and an inhibitory agent for a sialic-acid transferase comprising a flavone derivative as an effective component.SOLUTION: There are provided: the method of producing a compound represented by formula [in the formula, R1 represents H or OH, and n is 1, 2 or 3] and the inhibitory agent for a sialic-acid transferase comprising the compound as an effective component. The inhibitory agent for a sialic-acid transferase is useful as a prophylactic/therapeutic drug for inflammation, metastasis of cancer, and a viral infection disease such as a prophylactic/therapeutic drug for influenza, or is useful in analyzing the mechanism of the onset of the diseases.COPYRIGHT: (C)2010,JPO&INPIT【課題】新規なシアル酸転移酵素阻害剤の提供。【解決手段】下記式:[式中、R1はHまたはOHであり、nは1、2または3である]で表される化合物を製造する方法、ならびにかかる化合物を有効成分とするシアル酸転移酵素阻害剤。このシアル酸転移酵素阻害剤は、炎症、がん転移、ウイルス感染症の予防/治療剤として、例えばインフルエンザの予防/治療剤として、あるいはこれらの疾患の発症メカニズムの解明に有用である。【選択図】なし
