title: [Flavones from Helichrysi flos syn].
abstract: OBJECTIVE
  To study the chemical constituents of Helichrysi flos syn.
  
  
  METHODS
  The chemical constituents were isolated by various methods of isolation (silica gel, ODS column chromatography and HPLC) and their structure were elucidated by the analysis of spectral data and chemical properties.
  
  
  RESULTS
  Seven flavone compounds were isolated from the MeOH extract of Helichrysi flos syn. The chemical structures were elucidated as quercetin-3-O-beta-D-glucopyranoside (1), apigenin-7-O-beta-D-gentiobioside (2), quercetin-3-O-rutinoside (3), apigenin-7,4'-di-O-beta-D-glucopyranoside (4), kaempferol-3,4'-di-O-beta-D-glucopyranoside (5), quercetin-3,3'-di-O-beta-D-glucopyranoside (6), apigenin-7-O-beta-D-glucopyranosiduronic acid methyl ester (7).
  
  
  CONCLUSIONS
  Compounds 2, 4-7 were obtained from the genus Helichrysum for the first time.
authors.affiliation: Shanxi Biological Application Vocational Technical College, Taiyuan 030031, China.
authors.forename: Wenjuan
authors.initials: W
authors.lastname: Liu
authors.forename: Lijun
authors.initials: L
authors.lastname: Wu
mesh_terms: D002851:Chromatography, High Pressure Liquid; D004365:Drugs, Chinese Herbal / Q000032:analysis; D047309:Flavones / Q000032:analysis*; D036562:Helichrysum / Q000737:chemistry*
chemical_list: D004365:Drugs, Chinese Herbal; D047309:Flavones