title: [Studies on chemical constituents from leaves of Vaccinium bracteatum].
abstract: OBJECTIVE
  To investigate the chemical constituents from the leaves of Vaccinium bracteatum.
  
  
  METHODS
  Many column chromatographic techniques were used for the isolation and separation of chemical constituents. Their structures were elucidated on the basis of spectral analysis and chemical evidences.
  
  
  RESULTS
  Twelve compounds were isolated from the plant, and they were identified as chrysoeriol (1), scopoletin (2), trans-p-hydroxycinnamic acid (3), trans-p-hydroxycinnamic acid ethyl ester (4), cafeic acid ethyl ester (5), beta-sitosterol (6), iuteolin (7), quercetin (8), esculetin (9), cafeic acid (10), isolariciresinol-9-O-beta-D-xyloside (11), 10-O-trans-p-coumaroylsandoside (12).
  
  
  CONCLUSIONS
  Compounds 4, 5, 11, 12 were isolated from the genus Vaccinium for the first time, and compounds 1, 2, 9, 10 were isolated from this plant for the first time.
authors.affiliation: College of Science, Northwest Sci-Tec University of Agriculture and Forestry, Yangling 712100, China.
authors.forename: Zeng-Liang
authors.initials: ZL
authors.lastname: Li
authors.forename: Lin
authors.initials: L
authors.lastname: Zhang
authors.forename: Jing-Kui
authors.initials: JK
authors.lastname: Tian
authors.forename: Wen-Ming
authors.initials: WM
authors.lastname: Zhou
mesh_terms: D003373:Coumaric Acids / Q000737:chemistry; D047309:Flavones; D005419:Flavonoids / Q000737:chemistry; D005663:Furans / Q000737:chemistry; D006027:Glycosides / Q000737:chemistry; D008031:Lignin / Q000737:chemistry; D015394:Molecular Structure; D018515:Plant Leaves / Q000737:chemistry*; D012603:Scopoletin / Q000737:chemistry; D012855:Sitosterols / Q000737:chemistry; D014468:Umbelliferones / Q000737:chemistry; D029796:Vaccinium / Q000737:chemistry*
chemical_list: D003373:Coumaric Acids; D047309:Flavones; D005419:Flavonoids; D005663:Furans; D006027:Glycosides; D012855:Sitosterols; D014468:Umbelliferones; C540484:isolariciresinol-9-O-beta-D-xyloside; C025473:gamma-sitosterol; D008031:Lignin; D012603:Scopoletin; C007054:chrysoeriol; C007628:esculetin