从喀麦隆植物具苞片风车子中分离得到的一种新的β-D-吡喃葡萄糖基-2-氧代乌苏-12-烯-28-酸酯。

A new beta-D-glucopyranosyl 2-oxo-urs-12-en-28-oate from the Cameroonian plant Combretum bracteatum.

作者信息

Ntchatcho Germain, Verotta Luisella, Finzi Paola Vita, Zanoni Giuseppe, Vidari Giovanni

机构信息

Dipartimento di Chimica Organica, Università di Pavia, Via Taramelli 10, 27100 Pavia, Italy.

出版信息

Nat Prod Commun. 2009 Dec;4(12):1631-6.

PMID:20120095

Abstract

From the Cameroonian plant Combretum bracteatum (Laws.) Engl. and Diels a new compound, beta-D-glucopyranosyl 3 beta,19 alpha-dihydroxy-2-oxo-urs-12-en-28-oate, was isolated along with three known ursane and oleane triterpenes and two galactopyranosyl lipids. This represents the first example of a naturally occurring 2-oxo-urs-12-enoic acid derivative.

摘要

从喀麦隆植物苞叶风车子（Combretum bracteatum (Laws.) Engl. and Diels）中分离出一种新化合物β-D-吡喃葡萄糖基3β,19α-二羟基-2-氧代乌苏-12-烯-28-酸酯，同时还分离出三种已知的乌苏烷型和齐墩果烷型三萜以及两种吡喃半乳糖基脂质。这是天然存在的2-氧代乌苏-12-烯酸衍生物的首个实例。