title: [Study on the chemical constituents of Lonicera similes].
abstract: OBJECTIVE
  To study the chemical constituents of flower buds of Lonicera similes.
  
  
  METHODS
  The chemical constituents were isolated and purified with macroporous resin, silica gel column chromatography, gel chromatography, ect. The structures were elucidated according to the references combined with the application of spectrum techniques such as 1H-NMR, 13C-NMR ect.
  
  
  RESULTS
  Nine compounds were isolated and their structures were identified as 5-hydroxyl-7,4'-dimethoxyflavone (I), rutin (II), quercetin (III), amentoflavone (IV), aesculetin (V), beta-sitosterol (VI), 5-hydroxyl-7,3', 4'-trimethoxyflavone (VIII), oleanolic acid (VIII), beta-daucosterin (IX).
  
  
  CONCLUSIONS
  Among the nine isolated compounds, compounds I, II, III, IV, V, are flavonoids. Compounds I , IV, V, VII, VIII, IX are isolated from this plant for the first time.
authors.affiliation: College of pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, China. 412212711@qq.com
authors.forename: Guang-Ya
authors.initials: GY
authors.lastname: Zheng
authors.forename: Yu-Ying
authors.initials: YY
authors.lastname: Ma
authors.forename: Xiang-Rong
authors.initials: XR
authors.lastname: Mu
authors.forename: Xiao-Lin
authors.initials: XL
authors.lastname: Lu
authors.forename: Meng
authors.initials: M
authors.lastname: Zhai
mesh_terms: D044946:Biflavonoids / Q000737:chemistry / Q000302:isolation & purification; D047309:Flavones / Q000737:chemistry / Q000302:isolation & purification*; D035264:Flowers / Q000737:chemistry*; D031239:Lonicera / Q000737:chemistry*; D015394:Molecular Structure; D014468:Umbelliferones / Q000737:chemistry / Q000302:isolation & purification*; D019207:beta Carotene / Q000737:chemistry / Q000302:isolation & purification
chemical_list: D044946:Biflavonoids; D047309:Flavones; D014468:Umbelliferones; D019207:beta Carotene; C007628:esculetin