Author: J. A. Marco

0000000000282266

AUTHOR

J. A. Marco

New Eudesmanolides Related to Torrentin from Artemisia herba-alba subsp. valentina.

The reinvestigation of aerial parts of A. herba- alba subsp. valentina afforded four new eudesmanolides, all of them closely related to torrentin. Their structures were deduced by spectroscopic and chemical methods

research product

13C NMR spectra of eudesmanolides I—eudesman-12,6-olides

The 13C NMR spectra of 26 eudesmanolides of natural and synthetic origin have been measured, including the naturally occurring sesquiterpene lactones artemisin, torrentin, rothin-A and rothin-B and several semi-synthetic eudesman-12,6-olides obtained from artemisin. The chemical shift values of the different compounds are compared and the effects of the substituents are discussed.

research product

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