title: [Chemical constitunents of seeds of Oroxylum indicum].
abstract: OBJECTIVE
  To study the chemical constituents in the seeds of Oroxylum indicum.
  
  
  METHODS
  Twenty compounds were isolated and purified by silica gel, and Sephadex LH-20 column chromatography, and their structures were determined by spectroscopic analysis including NMR and MS.
  
  
  RESULTS
  Twenty compounds were isolated and identified as oroxin A (1), oroxin B (2), chrysin (3), baicalein (4), quercetin (5), apigenin (6), kaempferol (7), quercetin-3-O-ara-binopyranoside (8), lupeol C9), lup-20 (29)-ene-2alpha,3beta-diol (10), pinosylvin (11), dihydropinosylvin (12), cholest-5-ene-3, 7-diol (13), rengyol (14), isorengyol (15), zarzissine (16), (E) -pinosylvin-3-O-beta-D-glucopyranoside (17), adenosine (18), sitosterol (19) and daucosterol (20).
  
  
  CONCLUSIONS
  Compounds 11-13 and 15-18 were obtained from the genus Oroxylum for the first time, and except compound 18, the remaining 6 compounds were obtained from the family Bignoniaceae for the first time.
authors.affiliation: Department of Resources Science of Traditional Chinese Medicines, State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing 211198, China.
authors.forename: Xiao-Nan
authors.initials: XN
authors.lastname: Wei
authors.forename: Bin-Bin
authors.initials: BB
authors.lastname: Lin
authors.forename: Guo-Yong
authors.initials: GY
authors.lastname: Xie
authors.forename: Jian-Wen
authors.initials: JW
authors.lastname: Li
authors.forename: Min-Jian
authors.initials: MJ
authors.lastname: Qin
mesh_terms: D029402:Bignoniaceae / Q000737:chemistry*; D002845:Chromatography; D004365:Drugs, Chinese Herbal / Q000737:chemistry* / Q000302:isolation & purification; D009682:Magnetic Resonance Spectroscopy; D013058:Mass Spectrometry; D012639:Seeds / Q000737:chemistry*
chemical_list: D004365:Drugs, Chinese Herbal