Structure of the sequiterpene lactones fromCyclachaena xanthifolia
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The racemes ofCyclachaena xanthifolia Fresen. have yielded four sesquiterpene lactones, two of which are new, not having been described in the literature previously, and these have been called ivoxanthin and 1,2-anhydrocoronopilin. Structures II and IV have been proposed for these.
The plant also contains the sesquiterpene lactones coronopilin and ambrosin.
KeywordsHydrogenation Product Acetic Anhydride Thionyl Chloride Sesquiterpene Lactone Cyclopentanone
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- 2.Pliva, M. Horak, V. Herout, and F. Sorm, Terpenspektren, part I, Akademie Verlag, Berlin, 1960.Google Scholar