title: [Contents of flavonoids in the extract of Lespedeza virgata].
abstract: OBJECTIVE
  To study the contents of the flavonoids in the extract of Lespedeza virgate.
  
  
  METHODS
  The constituents in the ethanol extraction of the aerial parts of Lespedeza virgate were isolated and purified using column chromatography, and the isolated compounds were identified according to their physicochemical and spectral data.
  
  
  CONCLUSIONS
  Eight flavonoids were isolated and identified as tricin (I), kaempferol (II), apigenin (III), kaempferitrin (IV), morin (V), luteolin (VI), quercetin-3-O-alpha-L-rhamnoside (VII), chrysoeriol-7-rutinoside (VIII). The compounds I, II, III, V and VI were isolated for the first time from the plant, and the compound VIII was isolated from this genus for the first time.
authors.affiliation: College of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510515, China. crh8888@126.com
authors.forename: Yan
authors.initials: Y
authors.lastname: Chen
authors.forename: Hong-zhu
authors.initials: HZ
authors.lastname: Deng
authors.forename: Lei
authors.initials: L
authors.lastname: Liang
mesh_terms: D047310:Apigenin / Q000302:isolation & purification; D004365:Drugs, Chinese Herbal / Q000737:chemistry*; D005419:Flavonoids / Q000302:isolation & purification*; D044949:Kaempferols / Q000302:isolation & purification; D029884:Lespedeza / Q000737:chemistry*; D047311:Luteolin / Q000302:isolation & purification; D047309:Flavones
chemical_list: D047310:Apigenin; D004365:Drugs, Chinese Herbal; D005419:Flavonoids; D044949:Kaempferols; D047311:Luteolin; C539694:chrysoeriol-7-rutinoside; C006552:kaempferol; C008548:morin; D047309:Flavones; C017769:tricin