title: [Chemical constituents of Gymnotheca involucrata Pei].
abstract: OBJECTIVE
  To study the chemical constituents of Gymnotheca involucrata.
  
  
  METHODS
  Separating the constituents by means of chromatography and identifying their structures on the basis of NMR spectra and TLC with authentic samples.
  
  
  RESULTS
  From the methanolic extract of the whole plant of G. involucrata, three compounds were isolated and identified as kaempferol-4',7-dimethyl-3-O-glucoside, daucosterol and stigmasterol.
  
  
  CONCLUSIONS
  All the three compounds were isolated from this genus for the first time.
authors.affiliation: Laboratory of Natural Materia Medica, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, Sichuan, China.
authors.forename: W L
authors.initials: WL
authors.lastname: Yang
authors.forename: J
authors.initials: J
authors.lastname: Tian
authors.forename: L S
authors.initials: LS
authors.lastname: Ding
mesh_terms: D005419:Flavonoids / Q000737:chemistry / Q000302:isolation & purification; D005960:Glucosides / Q000737:chemistry / Q000302:isolation & purification; D044949:Kaempferols; D019684:Magnoliopsida / Q000737:chemistry*; D010946:Plants, Medicinal / Q000737:chemistry*; D012855:Sitosterols / Q000737:chemistry / Q000302:isolation & purification*; D013265:Stigmasterol / Q000737:chemistry / Q000302:isolation & purification
chemical_list: D005419:Flavonoids; D005960:Glucosides; D044949:Kaempferols; D012855:Sitosterols; C471770:kaempferol-4',7-dimethyl-3-O-glucoside; D013265:Stigmasterol; C011015:lyoniside