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Phytochemical Study of the Aerial Parts of Conyza discoridis Growing in Saudi Arabia  

Alqasoumi, Saleh I. (Department of Pharmacognosy, College of Pharmacy, King Saud University)
Publication Information
Natural Product Sciences / v.15, no.2, 2009 , pp. 66-70 More about this Journal
Abstract
Phytochemical investigation of the aerial parts of Conyza discoridis (L.) Desf. resulted in the isolation of the new sesquiterpene dilactone ester vernomenin-6-(2-hydroxymethyl)-acrylate (4) and two known sesquiterpene dilactones vernolepin (1) and vernomenin (3). Two known flavonols, 3-O-methylquercetin (2) and transilin (3-O-methylquercetin 7-O-${\beta}$-D-glucopyranoside) (5), were also identified. The structures were determined utilizing physical, chemical and spectral methods.
Keywords
Conyza discoridis; Astraceae; Sesquiterpene dilactones; Vernomenin-6-(2-hydroxymethyl)-acrylate; Flavonols;
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