Procyanidin xylosides from the bark of Betula pendula

被引：17
|
作者：
Liimatainen, Jaana [1 ]
Karonen, Maarit [1 ]
Sinkkonen, Jari [1 ]
机构：
[1] Univ Turku, Lab Organ Chem & Chem Biol, Dept Chem, FI-20014 Turku, Finland
来源：
PHYTOCHEMISTRY | 2012年 / 76卷
关键词：
Betula pendula; Betulaceae; Birch; HPLC-HRESIMS; NMR; Procyanidin glycoside; INNER BARK; GLYCOSIDES; PROANTHOCYANIDINS; TANNINS; ANTHOCYANINS; ASSIGNMENTS; EXTRACTS; FLAVAN; BIRCH; NMR;
D O I：
10.1016/j.phytochem.2012.01.008
中图分类号：
Q5 [生物化学]; Q7 [分子生物学];
学科分类号：
071010 ; 081704 ;
摘要：
A procyanidin dimer xyloside, catechin-(4 alpha -> 8)-7-O-beta-xylopyranosyl-catechin, was isolated from the inner bark of Betula pendula and its structure was determined using ID and 2D NMR, CD and high-resolution ESIMS. Interestingly, the 7-O-beta-xylopyranose unit was found to be present in the lower terminal unit of the dimer. In addition to this procyanidin dimer xyloside, an entire series of oligomeric and polymeric procyanidin xylosides was detected. Their structures were investigated by hydrophilic interaction HPLC-HRESIMS. Procyanidin glycosides are still rarely found in nature. (C) 2012 Elsevier Ltd. All rights reserved.
引用
收藏
页码：178 / 183
页数：6
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