Argophyllone-B,a sesquiterpene lactone from Helianthus argophyllus |
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| Authors: | Robert D. Stipanovic R. Bryan Miller H»kon Hope |
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| Affiliation: | 1. Department of Chemistry, University of California, Davis, CA 95616, U.S.A. |
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| Abstract: | The sesquiterpene lactone, 2-methyl-2-butenoic acid dodecahydro-4-(hydroxymethyl)-10a-methyl-8-methylene-3,7-dioxooxineno[5,6]cyclodeca[1,2-b]furan-9-yl ester [1aR*-[1aS*,4R*,5aS*,8aR*,9R*(E)]], argophyllone-B, was isolated from acetone extracts from the leaves of Helianthus argophyllus. Its structure has been determined by single crystal X-ray analysis. Complete 1H NMR and 13C NMR assignments have been made. |
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| Keywords: | germacranolide, argophyllone-B X-ray crystal structure sesquiterpene lactone. |
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