title: [Study on chemical constituents from leaf of Bombax ceiba (II)].
abstract: OBJECTIVE
  To study the chemical constituents from the leaf of Bombax ceiba.
  
  
  METHODS
  The compounds were isolated and purified with silica gel and Sephadex LH-20 column chromatography. Their structures were determined on the basis of physicochemical properties and spectroscopic analysis.
  
  
  RESULTS
  Eleven compounds were isolated and identified as taraxeryl acetate (1), squalene (2), taraxerone (3), beta-sitosterol palmitate (4), taraxerol (5), 4-methyl stigmast-7-en-3-ol (6), 1H-indole-3-carboxylic acid (7), 6-O-palmitoylsitosteryl-D-glucoside (8), 12beta-hydroxyl-pregnane-4, 16-diene-3, 20-dione (9), loliolide (10) and 5-(hydroxymethyl) furfural (11).
  
  
  CONCLUSIONS
  All the compounds are isolated from this genus for the first time.
authors.forename: Guo-Kai
authors.initials: GK
authors.lastname: Wang
authors.forename: Bin-Bin
authors.initials: BB
authors.lastname: Lin
authors.forename: Min-Jian
authors.initials: MJ
authors.lastname: Qin
mesh_terms: D035163:Bombax / Q000737:chemistry*; D002855:Chromatography, Thin Layer; D004365:Drugs, Chinese Herbal / Q000737:chemistry* / Q000302:isolation & purification; D015394:Molecular Structure; D009828:Oleanolic Acid / Q000031:analogs & derivatives / Q000737:chemistry / Q000302:isolation & purification; D018515:Plant Leaves / Q000737:chemistry*; D012855:Sitosterols / Q000737:chemistry / Q000302:isolation & purification; D013185:Squalene / Q000737:chemistry / Q000302:isolation & purification; D014315:Triterpenes / Q000737:chemistry / Q000302:isolation & purification
chemical_list: D004365:Drugs, Chinese Herbal; D012855:Sitosterols; D014315:Triterpenes; C561258:taraxeryl acetate; D009828:Oleanolic Acid; D013185:Squalene; C479126:sitosterol palmitate; C009379:taraxerone