Flavonols from Cryptocarya alba

Abstract

Ten flavonoids and chlorogenic acid were isolated from the leaves and stems of Cryptocarya alba (Lau-raceae). The flavonoids were identified as isorhamnetin, kaempferol, quercetin and their glycosides isorham-netin-3-O-rhamnoside. isorhamnetin-3-O-galactoside, isorhamnetin-3-O-glucoside, kaempferol-3-O-galacto-side. quercetin-3-O-rhamnoside (quercitrin), quercetin-3-O-glucoside (hyperoside), and quercetin-3-O-gluco-side (isoquercitrin). © 1995, Verlag der Zeitschrift für Naturforschung. All rights reserved.