isoshinanolone and kaempferol

Chemical investigatation of Drosera peltata var. multisepala led to the isolation of eleven compounds using various chromatographic techniques. The structures of these compounds were elucidated as isoshinanolone-4-O-beta-D-glucoside (1), isoshinanolone (2), epi-isoshinanolone (3), plumbagin (4), droserone (5), droserone-5-O-glucoside (6), quercetin (7), kaempferol (8) , gossypetin-8-O-glucoside (9), 3,3'-dimethoxy ellagic acid (10), and ellagic acid (11) by their physicochemical properties and spectral data analysis. Compound 1 was a new compound. Compounds 3, 8, 10, and 11 were isolated from this plant for the first time.

Topics: Chromatography, Liquid; Drosera; Drugs, Chinese Herbal; Ellagic Acid; Glucosides; Kaempferols; Magnetic Resonance Spectroscopy; Molecular Structure; Naphthoquinones; Plant Extracts; Quercetin; Spectrometry, Mass, Electrospray Ionization; Tetrahydronaphthalenes