Sesquiterpene Lactones from Elephantopus scaber

Ni Ni Than, Serge Fotso, Madhumati Sevvana, George M. Sheldrick, Heinz H. Fiebig, Gerhard Kelter, Hartmut Laatsch
2005 Zeitschrift für Naturforschung. B, A journal of chemical sciences  
The ethanolic and acetone extracts of the whole plant of Elephantopus scaber were found to contain ethyl hexadecanoate, ethyl-9,12-octadecadienoate, ethyl-(Z)-9-octadecenoate, ethyl octadecanoate, lupeol, stigmasterol, stigmasterol glucoside, deoxyelephantopin (1) and two new germacranolide sesquiterpene lactones named 17,19-dihydrodeoxyelephantopin (2) and iso-17,19- dihydrodeoxyelephantopin (3) whose stereostructures were determined by spectroscopic methods, comparison with reported data and
more » ... reported data and single-crystal X-ray analysis.
doi:10.1515/znb-2005-0212 fatcat:24lrzevdrvgixev6mzb464axtq