title: [Chemical Constituents from Camellia oleifera Stem].
abstract: OBJECTIVE
  To study the chemical constituents of stem of Camellia oleifera.
  
  
  METHODS
  The chemical constituents were isolated and purified by column chromatography on silica gel, ODS, Sephadex LH-20 and MPLC. Their structures were elucidated on the basis of physicochemical properties and special analysis.
  
  
  RESULTS
  Seven compounds were isolated from the stem of Camellia oleifera, whose structures were elucidated as (-) -pinoresinol (1), (-) -medioresinol (2), skullcapflavone II (3), betulinic acid (4), ursolic acid (5), 3-O-β-D-glucopyranosyl- (1 --> 2) -β-D-xylopyransoyl-(1 --> 3) -[β-D-glucopyranosyl- (1 --> 2)] -β-D-glucuronopyranosyl-22α-angeloyloxyolean-12-ene-15α,16α,28-triol (6) and oleanolic acid (7).
  
  
  CONCLUSIONS
  Compounds 1 - 6 are isolated from this plant for the first time, and compounds 1 - 3 are isolated from this genus for the first time.
authors.forename: Qing-wei
authors.initials: QW
authors.lastname: Yan
authors.forename: Rui-jian
authors.initials: RJ
authors.lastname: Zhong
authors.forename: Guo-ping
authors.initials: GP
authors.lastname: Zhou
authors.forename: Hui-zheng
authors.initials: HZ
authors.lastname: Fu
authors.forename: Tian-xiao
authors.initials: TX
authors.lastname: Zhang
mesh_terms: D028244:Camellia / Q000737:chemistry*; D004365:Drugs, Chinese Herbal / Q000737:chemistry*; D005419:Flavonoids / Q000302:isolation & purification; D005663:Furans / Q000302:isolation & purification; D017705:Lignans / Q000302:isolation & purification; D009828:Oleanolic Acid / Q000302:isolation & purification; D053978:Pentacyclic Triterpenes; D064209:Phytochemicals / Q000032:analysis* / Q000302:isolation & purification; D018547:Plant Stems / Q000737:chemistry*; D010946:Plants, Medicinal / Q000737:chemistry; D014315:Triterpenes / Q000302:isolation & purification; D000094062:Betulinic Acid; D000097245:Ursolic Acid
chemical_list: D004365:Drugs, Chinese Herbal; D005419:Flavonoids; D005663:Furans; D017705:Lignans; D009828:Oleanolic Acid; D053978:Pentacyclic Triterpenes; D064209:Phytochemicals; D014315:Triterpenes; D000094062:Betulinic Acid; D000097245:Ursolic Acid; C576388:medioresinol; C047405:skullcapflavone II; C103298:pinoresinol