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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
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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页码:1185 / 1187
页数:3
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