Identification of triterpene saponins in Quercus robur L. and Q. petraea Liebl heartwood by LC-ESI/MS and NMR

被引：36

作者：

Arramon, G ^{[1
]}

Saucier, C ^{[1
]}

Colombani, D ^{[1
]}

Glories, Y ^{[1
]}

机构：

[1] Univ Victor Segalen Bordeaux II, Fac OEnol, F-33405 Talence, France

来源：

PHYTOCHEMICAL ANALYSIS | 2002年 / 13卷 / 06期

关键词：

electrospray ionisation mass spectrometry; NMR; acidic triterpenes; heartwood; Quercus robur; Quercus petraea;

D O I：

10.1002/pca.658

中图分类号：

Q5 [生物化学];

学科分类号：

071010 ; 081704 ;

摘要：

A detailed structural study of the major acidic triterpene saponins from European oak heartwood, Quercus robur L. and Q. petraea Liebl., revealed the presence of 2alpha,3beta,19alpha-trihydroxyolean-12-ene-24,28-dioic acid (1), 2alpha,3beta,19alpha-23-tetrahydroxyolean-12-ene-24,28-dioic acid (2), and their corresponding glycosides, 28-ioD-glucopyranosyl-2alpha,3beta,19alpha-trihydroxyolean-12-ene-24,28-dioic acid (3), and 28-beta-D-glucopyranosyl-2alpha,3beta,19alpha,23-tetrahydroxyolean-12-ene-24,28-dioic acid (4). Compounds were isolated and purified by successive flash chromatography and semi-preparative HPLC, and structurally determined by NMR and LC-ESI/MS in the negative ion mode. Compounds 2 and 4 have been identified for the first time in Quercus species and are new compounds. Copyright (C) 2002 John Wiley Sons, Ltd.

引用

页码：305 / 310

页数：6

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