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

✍ Scribed by Klaudia Michalska; Marek Żylewski; Wanda Kisiel

Publisher
John Wiley and Sons
Year
2008
Tongue
English
Weight
89 KB
Volume
46
Category
Article
ISSN
0749-1581

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✦ Synopsis

Abstract

Two new sesquiterpene lactone xylosides, derivatives of the guaianolides 9α‐hydroxyleucodin and 9α‐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. Copyright © 2008 John Wiley & Sons, Ltd.

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