PROBLEM TO BE SOLVED: To provide a novel diosmetin compound and a method for producing it.SOLUTION: The diomestin compound is represented by formula (I), wherein R1, R2, and R3 are each independently a hydrogen atom or glucuronic acid. A pharmaceutical composition useful for prevention or treatment of chronic venous disease is also provided.COPYRIGHT: (C)2010,JPO&INPIT【課題】新規ジオスメチン(diosmetin)化合物およびその製造法の提供。【解決手段】式(I):[式中、R1、R2およびR3は、同じであるか、または異なってもよく、それぞれ、水素原子、またはグルクロン酸を表す]で示される化合物。慢性静脈疾患の予防または治療に有用な医薬組成物。【選択図】なし