title: [Studies on flavone constituents of Erigeron breviscapus (Vant.) Hand.-Mazz].
abstract: OBJECTIVE
  To study the chemical constituents of Erigeron breviscapus.
  
  
  METHODS
  The constituents were separated and purified by column chromatography with silica gel, and identified by IR, MS, NMR and physical data.
  
  
  RESULTS
  Five compounds were isolated and identified as 3, 5, 6, 4'-tetrahydroxy-7-methoxy flavonoid(I); 5, 7, 4'-trihydroxy flavonoid(II); 3, 5, 6, 7, 4'-pentahydroxy flavonoid(III); scutellarein (IV) and 5, 7, 4'-trihydroxy flavanone(V).
  
  
  CONCLUSIONS
  Compounds I, III and V were isolated from this plant for the first time.
authors.affiliation: College of Pharmacy, Second Military Medical University, Shanghai 200433, China.
authors.forename: W D
authors.initials: WD
authors.lastname: Zhang
authors.forename: W S
authors.initials: WS
authors.lastname: Chen
authors.forename: Y H
authors.initials: YH
authors.lastname: Wang
authors.forename: W Y
authors.initials: WY
authors.lastname: Liu
authors.forename: D Y
authors.initials: DY
authors.lastname: Kong
authors.forename: H T
authors.initials: HT
authors.lastname: Li
mesh_terms: D047310:Apigenin; D019659:Asteraceae / Q000737:chemistry*; D005419:Flavonoids / Q000737:chemistry / Q000302:isolation & purification*; D005965:Glucuronates; D010946:Plants, Medicinal / Q000737:chemistry*
chemical_list: C471408:3,5,6,4'-tetrahydroxy-7-methoxyflavonoid; D005419:Flavonoids; D005965:Glucuronates; C484876:scutellarin; D047310:Apigenin; C458179:scutellarein