Flavonoids and Terpenoids from the Resinous Exudates of Madia Species (Asteraceae, Helenieae)

Eckhard Wollenweber, Marion Dörr, Marco Dörsam, Abu El-Hamed Hassan, Ahmed A. Ahmed, M. F. Hegazy, Klaus-Peter Zeller
2003 Zeitschrift für Naturforschung C - A Journal of Biosciences  
The resinous material accumulated on aerial parts of Madia species is shown to consist mainly of diterpenes, containing a series of flavonoid aglycones. A6- and/or 8-O-substitution is characteristic for many of these flavonoids. Three known rare diterpenes were found and the structure elucidation of a diterpene with a new carbon skeleton, named madiaol, is reported.
doi:10.1515/znc-2003-3-401 fatcat:nfxsrncavbff3juby37oe7tzja