title: Four new flavonol glycosides from the leaves of Brugmansia suaveolens.
abstract: Four new flavonol glycosides were isolated from the leaves of Brugmansia suaveolens: kaempferol 3-O-β-D-glucopyranosyl-(1'''→2'')-O-α-L-arabinopyranoside (1), kaempferol 3-O-β-D-glucopyranosyl-(1'''→2'')-O-α-L-arabinopyranoside-7-O-į-D-gluco-pyranoside (2), kaempferol 3-O-β-D-[6'''-O-(E-caffeoyl)]-glucopyranosyl-(1'''→2'')-O-α-l-arabinopyranoside-7-O-β-D-glucopyranoside (3), and kaempferol 3-O-β-D-[2'''-O-(E-caffeoyl)]-glucopyranosyl-(1'''→2'')-O-α-l-arabinopyranoside-7-O-β-D-glucopyranoside (4). The structure elucidation was performed by MS, 1D and 2D NMR analyses.
authors.affiliation: Department of Pharmaceutical/Medicinal Chemistry, University of Tübingen, Tübingen 72076, Germany. fabiana.geller@ufsc.br.
authors.forename: Fabiana
authors.initials: F
authors.lastname: Geller
authors.affiliation: Escuela de Quimica and CIPRONA, University of Costa Rica, San José 2060, Costa Rica.
authors.forename: Renato
authors.initials: R
authors.lastname: Murillo
authors.affiliation: Department of Organic Chemistry, University of Tübingen, Tübingen 72076, Germany.
authors.forename: Lisa
authors.initials: L
authors.lastname: Steinhauser
authors.affiliation: Department of Industrial Pharmacy, Federal University of Santa Maria, Santa Maria 97105-900, Brazil.
authors.forename: Berta
authors.initials: B
authors.lastname: Heinzmann
authors.affiliation: Department of Organic Chemistry, University of Tübingen, Tübingen 72076, Germany.
authors.forename: Klaus
authors.initials: K
authors.lastname: Albert
authors.affiliation: Department of Pharmaceutical Biology and Biotechnology, University of Freiburg, Freiburg im Breisgau 79104, Germany.
authors.forename: Irmgard
authors.initials: I
authors.lastname: Merfort
authors.affiliation: Department of Pharmaceutical/Medicinal Chemistry, University of Tübingen, Tübingen 72076, Germany.
authors.forename: Stefan
authors.initials: S
authors.lastname: Laufer
mesh_terms: D044948:Flavonols / Q000737:chemistry* / Q000302:isolation & purification; D006027:Glycosides / Q000737:chemistry; D044949:Kaempferols / Q000737:chemistry; D009682:Magnetic Resonance Spectroscopy; D015394:Molecular Structure; D009844:Oligosaccharides / Q000737:chemistry; D018515:Plant Leaves / Q000737:chemistry; D019657:Solanaceae / Q000737:chemistry*
chemical_list: D044948:Flavonols; D006027:Glycosides; D044949:Kaempferols; D009844:Oligosaccharides; C000597822:kaempferol 3-O-beta-D-glucopyranosyl-(1''-2')-O-alpha-L-arabinopyranoside; C412884:kaempferol 3-O-rhamnopyranosyl-1-6-O-(glucopyranosyl-1-3-O-rhamnopyranosyl-1-2)-O-galactopyranoside