title: [Studies on chemical constituents from Pteris multifida].
abstract: OBJECTIVE
  To investigate the chemical constituents of Pteris multifida.
  
  
  METHODS
  All compounds were isolated and purified by normal column chromatography, paper thin layer chromatography and sephadex chromatography. The chemical structures were mainly elucidated by ESI mass and NMR spectra.
  
  
  RESULTS
  Seven compounds were isolated from the methanol extracts of Pteris multifida. In addition to a glycoside of sesquiterpene pterosin C-3-O-beta-D-glucoside(1), six flavonoids were isolated from S. barbata as fouows: apigenin(2), luteolin(3), apigenin-7-O-beta-D-glucoside(4), apigenin-7-O-beta-D-glucosyl-4'-O-alpha-L-rhanrnoside(5), apigenin-4'-O-alpha-L-rhanrnoside(6) and luteolin-7-O-beta-D-glucoside(7).
  
  
  CONCLUSIONS
  Compound(2), (3) and (5), (6) are isolated from Pteris multifida for the first time.
authors.affiliation: College of life and environment science, Chinese university of nationalities, Beijing 100081, China.
authors.forename: Wen-shu
authors.initials: WS
authors.lastname: Wang
authors.forename: Zhi-qian
authors.initials: ZQ
authors.lastname: Wang
authors.forename: Ya-wei
authors.initials: YW
authors.lastname: Zhou
mesh_terms: D047310:Apigenin / Q000737:chemistry / Q000302:isolation & purification; D005419:Flavonoids / Q000737:chemistry / Q000302:isolation & purification*; D005960:Glucosides / Q000737:chemistry / Q000302:isolation & purification; D047311:Luteolin / Q000737:chemistry / Q000302:isolation & purification; D009682:Magnetic Resonance Spectroscopy; D013058:Mass Spectrometry; D010946:Plants, Medicinal / Q000737:chemistry*; D029625:Pteridaceae / Q000737:chemistry*; D012717:Sesquiterpenes / Q000737:chemistry / Q000302:isolation & purification*
chemical_list: D005419:Flavonoids; D005960:Glucosides; D012717:Sesquiterpenes; C057792:apigetrin; D047310:Apigenin; C066408:luteolin-7-glucoside; D047311:Luteolin