title: [Chemical constituents from roots of Rubus parvifolius].
abstract: OBJECTIVE
  To investigate the chemical constituents from the roots of Rubus parvifolius.
  
  
  METHODS
  The chemical constituents were isolated by silica gel column chromatography, Sephadex LH-20, as well as preparative high performance liquid chromatography. Their structures were identified on the basis of physicochemical properties and NMR analysis.
  
  
  RESULTS
  Six comounds were isolated and identified as 3-O-Acetyl-11α, 12α-epoxy-oleanan-28,β-olide( I ) ,3-O-Acetyl-pomolic acid( II ), Ursolic acid( Ill),Ursolic acid acetate (1V ), Euscaphic acid ( V) and β-Sitosterol ( VI).
  
  
  CONCLUSIONS
  Compounds I , II and IV are isolated from Rubus parvifolius for the first time.
authors.forename: Xiao-lu
authors.initials: XL
authors.lastname: Chen
authors.forename: Quan-xi
authors.initials: QX
authors.lastname: Mei
authors.forename: Hong-bo
authors.initials: HB
authors.lastname: Zhou
authors.forename: Zhi-jian
authors.initials: ZJ
authors.lastname: Fang
authors.forename: Ying-xin
authors.initials: YX
authors.lastname: Zhu
mesh_terms: D002851:Chromatography, High Pressure Liquid; D009682:Magnetic Resonance Spectroscopy; D009828:Oleanolic Acid / Q000031:analogs & derivatives; D018517:Plant Roots / Q000737:chemistry*; D065856:Rubus / Q000737:chemistry*; D012855:Sitosterols; D014315:Triterpenes; D000097245:Ursolic Acid
chemical_list: D009828:Oleanolic Acid; D012855:Sitosterols; D014315:Triterpenes; D000097245:Ursolic Acid; C007695:euscaphic acid; C025473:gamma-sitosterol; C115535:pomolic acid