Arao T, Idzu T, Kinjo J, Nohara T, Isobe R
Faculty of Pharmaceutical Sciences, Kumamoto University, Japan.
Chem Pharm Bull (Tokyo). 1996 Oct;44(10):1970-2. doi: 10.1248/cpb.44.1970.
From the root of Pueraria thomsonii (Leguminosae), three new oleanane-type triterpene glycosides, named kudzusaponin B1, acetyl-kaikasaponin III and acetyl-soyasaponin I were isolated, together with soyasaponin I (4) and subproside V (5). Their structures were determined to be 3-O-alpha-L-rhamnopyranosyl-(1-->2)-beta-D-galactopyranosyl-(1-->2) -beta-D-glucuronopyranosyl kudzusapogenol B (1), 3-O-alpha-L-rhamnopyranosyl-(1-->2)-beta-D-galactopyranosyl-(1-->2) -beta-D-glucuronopyranosyl sophoradiol 22-O-acetate (2) and 3-O-alpha-L-rhamnopyranosyl-(1-->2)-beta-D-galactopyranosyl-(1-->2) -beta-D-glucuronopyranosyl soyasapogenol B 22-O-acetate (3), respectively.
从野葛（豆科）的根部分离得到了三种新的齐墩果烷型三萜糖苷，分别命名为葛根皂苷B1、乙酰化大豆皂苷III和乙酰化大豆皂苷I，同时还得到了大豆皂苷I（4）和次皂苷V（5）。它们的结构分别被确定为3-O-α-L-鼠李吡喃糖基-(1→2)-β-D-半乳吡喃糖基-(1→2)-β-D-葡糖醛酸吡喃糖基葛根皂苷元B（1）、3-O-α-L-鼠李吡喃糖基-(1→2)-β-D-半乳吡喃糖基-(1→2)-β-D-葡糖醛酸吡喃糖基槐二醇22-O-乙酸酯（2）和3-O-α-L-鼠李吡喃糖基-(1→2)-β-D-半乳吡喃糖基-(1→2)-β-D-葡糖醛酸吡喃糖基大豆皂苷元B 22-O-乙酸酯（3）。
