Structure elucidation and complete NMR spectral assignments of two new sesquiterpene lactone xylosides from Lactuca triangulata |
| |
Authors: | Michalska Klaudia Zylewski Marek Kisiel Wanda |
| |
Affiliation: | Department of Phytochemistry, Institute of Pharmacology, Polish Academy of Sciences, Pl-31-343 Krakow, Poland. |
| |
Abstract: | Two new sesquiterpene lactone xylosides, derivatives of the guaianolides 9alpha-hydroxyleucodin and 9alpha-hydroxy-11,13-dehydroleucodin, were isolated from roots of Lactuca triangulata. Their structures were established on the basis of (1)H and (13)C 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. |
| |
Keywords: | NMR 1H 13C 2D NMR Lactuca triangulata sesquiterpene lactones xylosides guaianolides |
本文献已被 PubMed 等数据库收录! |
|