title: [Studies on chemical constituents of Smilax china].
abstract: OBJECTIVE
  To study the chemical constituents of the 95% ethanol extract from the rhizome of Smilax china.
  
  
  METHODS
  Seven compounds were isolated from ethyl acetate fraction of 95% ethanol extract by using repeated silica column chromatography, partition chromatography, preparing TLC, and other methods. Structure of three compounds of them was identified based on chemical methods and spectroscopic methods.
  
  
  RESULTS
  The structure of them were established as dihydrokaempferol-5-O-beta-D-glucoside (I), beta-sitosterol (II), daucosterol (III).
  
  
  CONCLUSIONS
  Compound I was a novel compound which was first found from natural plants.
authors.affiliation: College of Pharmacy, Tongji Medical Center of Huazhong University of Science and Technology, Wuhan 430030.
authors.forename: Jinlan
authors.initials: J
authors.lastname: Ruan
authors.forename: Jian
authors.initials: J
authors.lastname: Zou
authors.forename: Yaling
authors.initials: Y
authors.lastname: Cai
mesh_terms: D005419:Flavonoids / Q000737:chemistry / Q000302:isolation & purification*; D005960:Glucosides / Q000737:chemistry / Q000302:isolation & purification*; D015394:Molecular Structure; D010946:Plants, Medicinal / Q000737:chemistry*; D027343:Rhizome / Q000737:chemistry; D012855:Sitosterols / Q000737:chemistry / Q000302:isolation & purification*; D032281:Smilax / Q000737:chemistry*; D013056:Spectrophotometry, Ultraviolet
chemical_list: D005419:Flavonoids; D005960:Glucosides; D012855:Sitosterols; C025473:gamma-sitosterol; C080220:aromadedrin; C011015:lyoniside