title: [Chemical constituents of Drosera peltata Smith var. lunata (Buch.-Ham.) C.B. clarke collected in Tibet].
abstract: OBJECTIVE
  To investigate the chemical constituents of the whole plant of Drosera peltata var. lunata collected in Tibet.
  
  
  METHODS
  Compounds were separated by means of pH gradient extraction and rechromatography on silica gel, and the structures were determined by spectral analysis and physicochemical evidence.
  
  
  RESULTS
  Five crystalline compounds were obtained and elucidated as plumbagin(1), droserone(2), hydroxydroserone(3), beta-sitosterol(4) and stigmasterol(5) respectively.
  
  
  CONCLUSIONS
  Compound 3 and 5 were isolated from the plant for the first time.
authors.affiliation: Department of Chemistry, Zhongshan University, Guangzhou 510275.
authors.forename: Q
authors.initials: Q
authors.lastname: Wang
authors.forename: J
authors.initials: J
authors.lastname: Shu
authors.forename: L
authors.initials: L
authors.lastname: Zeng
mesh_terms: D029787:Drosera / Q000737:chemistry*; D004365:Drugs, Chinese Herbal / Q000737:chemistry*; D015394:Molecular Structure; D009285:Naphthoquinones / Q000737:chemistry / Q000302:isolation & purification; D010936:Plant Extracts / Q000737:chemistry / Q000302:isolation & purification*; D010946:Plants, Medicinal / Q000737:chemistry*; D013265:Stigmasterol / Q000737:chemistry / Q000302:isolation & purification*
chemical_list: D004365:Drugs, Chinese Herbal; D009285:Naphthoquinones; D010936:Plant Extracts; C439391:hydroxydroserone; D013265:Stigmasterol; C014758:plumbagin