The methanolic extract from the flower buds of Canangaodorata showed an inhibitory effect on melanogenesis in theophylline-stimulated murine B16 melanoma 4A5 cells. From the methanolic extract, two new lignan dicarboxylates, canangalignans I and II, three new terpenoids, canangaterpenes I, II, and III, and eight known compounds were isolated. The structures of these compounds were elucidated on the
The unusual canangafruticosides A–E: Five monoterpene glucosides, two monoterpenes and a monoterpene glucoside diester of the aryldihydronaphthalene lignan dicarboxylic acid from leaves of Cananga odorata var. fruticosa
From the leaves of Cananga odorata var. fruticosa, five unusual monoterpene glucosides, named canangafruticosides A-E (1-5), along with two unusual non-glucosidic monoterpenes (6, 7) were isolated. An aryldihydronaphthalene-type lignan dicarboxylate (8) was also isolated, with two moles of canangafruticoside A (1) on its ester moiety. This lignan also showed strong blue fluorescence emission under
来自 Cananga odorata var 的叶子。fruticosa、五种不同寻常的单萜糖苷,命名为 canangafruticosides AE (1-5),以及两种不同寻常的非糖苷单萜 (6, 7)。还分离了芳基二氢萘型木脂素二羧酸酯 (8),其酯部分上有两摩尔 canangafruticoside A (1)。该木脂素在碱性条件下也显示出强烈的蓝色荧光发射。这些化合物的结构是通过光谱方法阐明的,它们的绝对构型是通过将改良的 Mosher 方法应用于化学衍生自 canangafruticoside E 的化合物来确定的。