title: [Studies on the chemical constituents of Laportea bulbifera].
abstract: OBJECTIVE
  To study the chemical constituents of Laportea bulbifera.
  
  
  METHODS
  70% EtOH was used for constituent extraction, silica gel column chromatography for constituent seperation, physical and chemical properties together with spectroscopic methods for chemical structure identification.
  
  
  RESULTS
  six compounds were obtained from root of L. bulbifera. Their chemical structures were elucidated as p3-sitosterol(1) , P-daucosterol (2), 2,2'-oxy-bis(1-phenylethanol (3), 1-(2-phenylcarbonyloxy acetyl) benzene (4) , methyl linoleate(5),1,4-diphenyl-1,4-butanedione(6).
  
  
  CONCLUSIONS
  All compounds are isolated from L. bulbifera and among compounds 3 and 4 are reported as natural products for the first time.
authors.affiliation: The Key Laboratory of Chemistry for Natural Products of Guizhou Province and Chinese Academy of Sciences, Guiyang 550002, China.
authors.forename: Zhu
authors.initials: Z
authors.lastname: Zhu
authors.forename: Lin
authors.initials: L
authors.lastname: Ma
authors.forename: Hai-yan
authors.initials: HY
authors.lastname: Zhu
authors.forename: Xiao-sheng
authors.initials: XS
authors.lastname: Yang
authors.forename: Xiao-jiang
authors.initials: XJ
authors.lastname: Hao
mesh_terms: D008041:Linoleic Acids / Q000737:chemistry / Q000302:isolation & purification; D009682:Magnetic Resonance Spectroscopy; D015394:Molecular Structure; D010936:Plant Extracts / Q000737:chemistry / Q000302:isolation & purification*; D010946:Plants, Medicinal / Q000737:chemistry*; D027343:Rhizome / Q000737:chemistry; D012855:Sitosterols / Q000737:chemistry / Q000302:isolation & purification; D027003:Urticaceae / Q000737:chemistry*
chemical_list: D008041:Linoleic Acids; D010936:Plant Extracts; D012855:Sitosterols; C005575:methyl linoleate; C025473:gamma-sitosterol