Structure elucidation and complete NMR spectral assignments of two new sesquiterpene lactone xylosides from Lactuca triangulata

被引：13
|
作者：
Michalska, Klaudia [1 ]
Zylewski, Marek [2 ]
Kisiel, Wanda [1 ]
机构：
[1] Polish Acad Sci, Inst Pharmacol, Dept Phytochem, PL-31343 Krakow, Poland
[2] Jagiellonian Univ, Dept Organ Chem, NMR Lab, PL-30688 Krakow, Poland
来源：
MAGNETIC RESONANCE IN CHEMISTRY | 2008年 / 46卷 / 12期
关键词：
NMR; H-1; C-13; 2D NMR; Lactuca triangulata; sesquiterpene lactones; xylosides; guaianolides;
D O I：
10.1002/mrc.2323
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Two new sesquiterpene lactone xylosides, derivatives of the guaianolides 9 alpha-hydroxyleucodin and 9 alpha-hydroxy-11, 13-dehydroleucodin, were isolated from roots of Lactuca triangulata. Their structures were established on the basis of H-1 and C-13 NMR spectra, 2D NMR (HMQC, HMBC, COSY, NOESY) techniques and comparison with the literature data. The compounds represent the first example of sesquiterpene lactone xylosides. Copyright (C) 2008 John Wiley & Sons, Ltd.
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收藏
页码：1185 / 1187
页数：3
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