A new triterpenoidal saponin, 3-O-[α-L-rhamnopyanosyl(1→2)-α-L-arabinopyranosyl(1→2)-β-D-glucuronopyranosyl]sophoradio (I), was isolated from the flowers of Pueraria lobata (WILLD.) OHWI (Leguminosae). Its structure was elucidated on the basis of chemical and physicochemical evidence. In addition, a known oligoglycoside kaikasaponin III (II) was isolated from both flowers and leaves of this plant, together with several known aromatic compounds.
从野葛(Pueraria lobata (WILLD.) OHWI)(豆科植物)的花中分离出一种新的三
萜类皂甙--3-O-[α-L-rhamnopyanosyl(1→2)-α-L-arabinopyranosyl(1→2)-β-D-glucuronopyranosyl]sophoradio (I)。根据
化学和物理
化学证据阐明了其结构。此外,还从该植物的花和叶中分离出一种已知的低聚糖苷 kaikasaponin III (II),以及几种已知的芳香族化合物。