芸香科植物中含有很丰富的萜类、生物碱类、黄酮类、香豆素类及其他类的化合物。这一类植物中有不少化合物具有明显的生物化学活性,这是由于分子类型中异戊间二烯(Isoprene)的多种变化结果。异戊间二烯通常见于香豆素和芸香生物碱中,但在芸香科的黄酮类化合物只分离出一种化合物amurensin含有异戊间二烯取代物。 Phebalium dentatum Smith.的精油中含有α-蒎烯,香叶烯和3-亚甲基-7-甲基庚二烯。本文报导从其叶中又分离得一新黄酮化合物。磨碎的干叶用石油醚提取,提取液浓缩后,用丙 Rutaceae plants are rich in terpenes, alkaloids, flavonoids, coumarins and other compounds. Many of these compounds have significant biochemical activity due to many changes in the molecular type of isoprene. Isoprene is commonly found in coumarin and rutin alkaloids, but only one compound, amurensin, is isolated from the flavonoids of the Rutaceae family containing isoprenoid substitutes. Essential oils of Phebalium dentatum Smith. Contain alpha-pinene, myrcene and 3-methylene-7-methylheptadiene. This article reports that a new flavonoid compound has been isolated from its leaves. Grated dried leaves were extracted with petroleum ether, the extract was concentrated, with C