title: [Studies on flavonoids of Eupatorium odoratum L].
abstract: OBJECTIVE
  To investigate the flavonoid constituents from aerial parts of Eupatorium odoratum L. systematically.
  
  
  METHODS
  The constituents of the EtoAc-soluble portions of the 95% ethanol extraction were isolated and purified by silica gel and sephadex LH-20 chromatography. Their structures were elucidated on the basis of physicochemical properties and spectral analysis.
  
  
  RESULTS
  Eight compounds were isolated and identified as kaempferol-3-methoxy (I), rhamnetin (II), tamarixetin (III), quercetin (IV), kaempferol (V), apigenin (VI), luteolin (VII), dihydrokaempferide (VIII).
  
  
  CONCLUSIONS
  Compound I , II and VI were isolated for the first time from genus Eupatorium, and VIII which is rare flavonoid was obtainted for the first time from family Compositae.
authors.affiliation: Guangxi Institute of Medicinal Plant, Nanning 530023, China.
authors.forename: Jing-Quan
authors.initials: JQ
authors.lastname: Yuan
authors.forename: Jun-Shan
authors.initials: JS
authors.lastname: Yang
authors.forename: Jian-Hua
authors.initials: JH
authors.lastname: Miao
mesh_terms: D047310:Apigenin / Q000737:chemistry / Q000302:isolation & purification; D002850:Chromatography, Gel / Q000379:methods; D002852:Chromatography, Ion Exchange / Q000379:methods; D036604:Chromolaena / Q000737:chemistry*; D003911:Dextrans; D004187:Disaccharides / Q000737:chemistry / Q000302:isolation & purification; D005419:Flavonoids / Q000032:analysis* / Q000737:chemistry / Q000302:isolation & purification*; D044949:Kaempferols / Q000737:chemistry / Q000302:isolation & purification; D015394:Molecular Structure; D035261:Plant Components, Aerial / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry*; D011794:Quercetin / Q000031:analogs & derivatives / Q000737:chemistry / Q000302:isolation & purification; D012822:Silicon Dioxide
chemical_list: D003911:Dextrans; D004187:Disaccharides; D005419:Flavonoids; D044949:Kaempferols; C063423:rhamnetin; C508967:tamarixetin; D012822:Silicon Dioxide; D047310:Apigenin; C025614:sephadex; D011794:Quercetin