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Complete assignments of 1H and 13C NMR spectroscopic data for three new stigmastane glycosides from Vernonia cumingiana

✍ Scribed by Maorong Suo; Junshan Yang

Publisher
John Wiley and Sons
Year
2009
Tongue
English
Weight
112 KB
Volume
47
Category
Article
ISSN
0749-1581

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✦ Synopsis

Abstract

Three new steroidal saponins, Vernoniosides S1 (1), Vernoniosides S2 (2) and Vernoniosides S3 (3) were isolated from the stem of Vernonia cumingian. Their chemical structures were elucidated on the basis of MS, NMR spectroscopic and chemical analysis. Complete assignment of ^1^H and ^13^C NMR spectroscopic data were achieved by 1D and 2D NMR experiments (HMQC, HMBC, ROESY). Copyright © 2008 John Wiley & Sons, Ltd.

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