title: Flavonol glycosides from Cephalocereus senilis.
abstract: A new flavonol tetraglycoside, together with two known flavonol glycosides, kaempferol 7-rhamnoside and kaempferol 3-rhamnosyl(1-->6) galactoside-7-rhamnoside, were isolated from fresh plant material of Cephalocereus senilis. The structure of the new compound was established as kaempferol 3-O-beta-D-glucopyranosyl(1-->2)-O-[alpha-L-rhamnopyranosyl (1-->6)]-beta-D-galactopyranoside-7-O-alpha-L-rhamnopyranoside based on spectroscopic data. The whole plant flavonoid chemistry was strikingly different from that found previously in chitin-treated cell suspension cultures of the same plant.
authors.affiliation: Department of Botany, University of Texas at Austin 78713.
authors.forename: Q
authors.initials: Q
authors.lastname: Liu
authors.forename: M
authors.initials: M
authors.lastname: Liu
authors.forename: T J
authors.initials: TJ
authors.lastname: Mabry
authors.forename: R A
authors.initials: RA
authors.lastname: Dixon
mesh_terms: D002240:Carbohydrate Sequence; D005419:Flavonoids / Q000302:isolation & purification*; D044948:Flavonols; D006027:Glycosides / Q000302:isolation & purification*; D009682:Magnetic Resonance Spectroscopy; D008969:Molecular Sequence Data; D010944:Plants / Q000737:chemistry*
chemical_list: D005419:Flavonoids; D044948:Flavonols; D006027:Glycosides