title: Flavonoids from Echinops echinatus.
abstract: A new isoflavone glycoside, echinoside (7), together with 7-hydroxyisoflavone, kaempferol-4'-methylether, kaempferol-7-methylether, myrecetin-3-O-alpha-L-rhamnoside, kaempferol and kaempferol-3-O-alpha-L-rhamnoside, has been isolated from the whole plant of Echinops echinatus. The structure of echinoside has been established by chemical and spectral data. This is the first report of the occurrence of these flavonoids in E. echinatus.
authors.affiliation: Department of Medicinal Chemistry, Institute of Medical Sciences, Banaras Hindu University, Varanasi 221 005, India.
authors.forename: S
authors.initials: S
authors.lastname: Singh
authors.forename: R K
authors.initials: RK
authors.lastname: Upadhyay
authors.forename: M B
authors.initials: MB
authors.lastname: Pandey
authors.forename: J P
authors.initials: JP
authors.lastname: Singh
authors.forename: V B
authors.initials: VB
authors.lastname: Pandey
mesh_terms: D031182:Echinops Plant / Q000737:chemistry*; D005419:Flavonoids / Q000737:chemistry* / Q000302:isolation & purification; D015394:Molecular Structure
chemical_list: D005419:Flavonoids; C517561:echinoside