title: [Chemical constituents from the flower of Juglans regia].
abstract: OBJECTIVE
  To study the chemical constituents from the flower Juglans regia.
  
  
  METHODS
  All compounds were isolated and purified by normal column chromatograph and polyamide chromatograph, the chemical strucures were mainly elucidated by ESI-MS and NMR spectra.
  
  
  RESULTS
  Seven compounds were identified as follows: 4,5,8-trihydroxy-alpha-tetralone 5-O-beta-D-glucopyranoside(1),4,5-dihydroxy-alpha-tetralone4-O-beta-D-glucopyranoside(2), 5-hydroxy-4-methoxytetralone (3), 5-hydroxy-1, 4-naphthoquinone (4), rutin (5), vanillin (6), tetracosanoic acid 2,3-dihydroxypropyl ester (7).
  
  
  CONCLUSIONS
  All compounds are isolated from this plant for the first time.
authors.affiliation: School of Pharmacy, Lanzhou University, Lanzhou 730000, China. luojianjun9@163.com
authors.forename: Jian-Jun
authors.initials: JJ
authors.lastname: Luo
authors.forename: Ben
authors.initials: B
authors.lastname: Yang
authors.forename: Yong
authors.initials: Y
authors.lastname: Zeng
authors.forename: Chong
authors.initials: C
authors.lastname: Li
mesh_terms: D001547:Benzaldehydes / Q000737:chemistry / Q000302:isolation & purification*; D035264:Flowers / Q000737:chemistry*; D005960:Glucosides / Q000737:chemistry / Q000302:isolation & purification; D031324:Juglans / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy; D015394:Molecular Structure; D009285:Naphthoquinones / Q000737:chemistry / Q000302:isolation & purification*; D012431:Rutin / Q000737:chemistry / Q000302:isolation & purification*
chemical_list: D001547:Benzaldehydes; D005960:Glucosides; D009285:Naphthoquinones; D012431:Rutin; C100058:vanillin; C005134:juglone