来自亚马逊悬钩子属植物根部的三萜皂苷。

Triterpene saponins from the roots of Ampelozizyphus amazonicus.

作者信息

Brandao M G, Lacaille-Dubois M A, Teixera M A, Wagner H

机构信息

Laboratorio de Farmacognosia, Faculdade de Farmacia, Universidade Federal de Minas Gerais, Belo-Horizonte, Brasil.

出版信息

Phytochemistry. 1992 Jan;31(1):352-4. doi: 10.1016/0031-9422(91)83076-w.

DOI:10.1016/0031-9422(91)83076-w

PMID:1367885

Abstract

A new triterpene saponin was isolated from the roots of Ampelozizyphus amazonicus together with the known 3-O-beta-D-glucopyranosyl-20-O-alpha-L-rhamnopyranosyljujubogenin and the known triterpenes melaleucic acid, 3 beta,27 alpha-dihydroxylup-20(29)-en-28 beta-oic acid, betulinic acid, betulin, lupeol. The structure of this saponin was elucidated as 3-O-[beta-D-glucopyranosyl(1----2)alpha-L-arabinopyranosyl]- 20-O-alpha-L-rhamnopyranosyljujubogenin by spectral analysis and chemical transformations.

摘要

从亚马逊悬钩子属植物的根中分离出一种新的三萜皂苷，以及已知的3-O-β-D-吡喃葡萄糖基-20-O-α-L-吡喃鼠李糖基酸枣仁皂苷元，还有已知的三萜类化合物白千层酸、3β,27α-二羟基羽扇豆-20(29)-烯-28β-酸、桦木酸、桦木醇、羽扇豆醇。通过光谱分析和化学转化确定该皂苷的结构为3-O-[β-D-吡喃葡萄糖基(1→2)α-L-吡喃阿拉伯糖基]-20-O-α-L-吡喃鼠李糖基酸枣仁皂苷元。