Flavonoids from Vernonia fasciculata Michx. Isolation of genkwanin and a new flavone disaccharide, fasciculatin
Abstract
Genkwanin(4′,5-dihydroxy-7-methoxyflavone) and a new flavone disaccharide, 4′-O-(2-O-rhamnosylglucosyl)-genkwanin, have been isolated from a chloroform extract of the leaves of Vernonia fasciculata Michx.