title: [Flavonoids of Erigeron canadensis].
abstract: OBJECTIVE
  To study the flavonoids of Erigeron canadensis.
  
  
  METHODS
  The constituents of EtOH extraction from the whole plant of E. canadensis were isolated and purified by repeated column chromatography. These compounds were identified by their physical and spectral data.
  
  
  RESULTS
  Twelve flavonoids were isolated and identified as quercetin-7-O-beta-D-galactopyranoside(1),quercetin(2), luteolin(3), apigenin(4),5,7,4'-trihydroxy-3'-methoxy flavone(5), quercetin-3-alpha-rhamnopyranoside(6), quercetin-3-O-beta-D-glucopyranoside(7), apigenin-7-O-beta-D-glucopyranoside(8), luteolin-7-O-beta-D-glucuronide methyl ester(9),4'-hydroxy baicalein-7-O-beta-D-glucopyranoside(10),baicalein(11),rutin(12).
  
  
  CONCLUSIONS
  Compound 1 was isolated from the Compositae family for the first time. Compound 5 and 9 were firstly isolated from the genus Erigeron. Compound 3,4,7,8 and 11 were isolated from E. canadensis for the first time.
authors.affiliation: Changchun University of Traditional Chinese Medicine, Changchun 130117, China. ss36038612@163.com
authors.forename: Shuai
authors.initials: S
authors.lastname: Shao
authors.forename: Ming-ming
authors.initials: MM
authors.lastname: Yang
authors.forename: Sheng-nan
authors.initials: SN
authors.lastname: Bi
authors.forename: Zhi-qiang
authors.initials: ZQ
authors.lastname: Wan
mesh_terms: D035401:Conyza / Q000737:chemistry*; D005419:Flavonoids / Q000737:chemistry* / Q000302:isolation & purification; D019906:Nuclear Magnetic Resonance, Biomolecular
chemical_list: D005419:Flavonoids