PROBLEM TO BE SOLVED: To isolate a new useful compound contained in bark of Alangium salviifolium, and to provide pharmaceuticals or the like that contains the compound.SOLUTION: Provided are: a compound represented by general formula (I) or (II), wherein, R1, R2, R3, R4 and R5 identically or differently denote a hydrogen atom or a protective group antioxidants and skin whitening agents containing the compound as an active ingredient and medicines, cosmetics and food compositions containing the compound.COPYRIGHT: (C)2013,JPO&INPIT【課題】アランギウム・サルヴィフォリウムの樹皮に含まれる有用な新規化合物を単離し、該化合物を含有する医薬品等を提供する。【解決手段】(I)又は(II):[式中、R1、R2、R3、R4及びR5は同一又は異なって、水素原子又は保護基を示す。]で表される化合物、該化合物を有効成分として含有する抗酸化剤及び美白剤、並びに該化合物を含有する医薬品、化粧料及び食品組成物。【選択図】なし
