title: [Studies on chemical constituents of rhizomes of Smilax china].
abstract: OBJECTIVE
  To study the chemical constituents of the rhizomes of Smilax china.
  
  
  METHODS
  The constituents of the rhizomes of S. china were isolated and purified by repeated silica gel and Sephadex LH-20 chromatography, and their structures were elucidated on the basis of spectral analysis.
  
  
  RESULTS
  Thirteen compounds were obtained and identified as kaemperol-7-O-beta-D-glucopyranoside (1), engeletin (2), isoengeletin (3), kaempferol (4), dihydrokaempferol (5), dihydrokaempferol-5-O-P-D-glucopyranoside (6), rutin (7), kaempferol- 5-O-beta-D-glucopyranoside (8), 3, 5, 4'-trihydroxystibene (9), vanillic acid (10), 3, 5-dimethoxy4-O-beta-D-glu-copyranosylcinnamic acid (11), beta-sitosterol (12), and beta-daucosterol (13) , respectively.
  
  
  CONCLUSIONS
  Compounds 1, 3, 7, 8, and 11 were isolated from this plant for the first time, and compounds 8 and 11 were isolated from the genus Smilax for the first time.
authors.affiliation: Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100193, China.
authors.forename: Yan
authors.initials: Y
authors.lastname: Xu
authors.forename: Jing-Yu
authors.initials: JY
authors.lastname: Liang
authors.forename: Zhong-Mei
authors.initials: ZM
authors.lastname: Zou
mesh_terms: D002845:Chromatography; D005419:Flavonoids / Q000737:chemistry; D044948:Flavonols / Q000737:chemistry; D006027:Glycosides / Q000737:chemistry; D044949:Kaempferols / Q000737:chemistry; D009682:Magnetic Resonance Spectroscopy; D010946:Plants, Medicinal / Q000737:chemistry*; D027343:Rhizome / Q000737:chemistry*; D012855:Sitosterols / Q000737:chemistry; D032281:Smilax / Q000737:chemistry*; D014641:Vanillic Acid / Q000737:chemistry
chemical_list: D005419:Flavonoids; D044948:Flavonols; D006027:Glycosides; D044949:Kaempferols; D012855:Sitosterols; C522936:engeletin; C025473:gamma-sitosterol; C006552:kaempferol; C080220:aromadedrin; D014641:Vanillic Acid