title: [Studies on chemical constituents from the stems of Schisandra sphaerandra].
abstract: OBJECTIVE
  To investigate the chemical constituents from the stems of Schisandra sphaerandra.
  
  
  METHODS
  Compounds were isolated from ethanolic extract of the titled herb by silica gel column chromatography, and their structures were elucidated by physical and chemical evidences and spectroscopic analysis.
  
  
  RESULTS
  12 compounds were obtained and identified as wuweizisu C (1), ganwuweizic acid (2), nigranoic acid (3), catechin (4), 2 alpha,24-dihytroxyursolic acid. (5), 3 beta-O-acetylursolic acid (6), ursolic acid (7), slyceryl 26-hydroxyhexacosanoate (8), slyceryl hexacosanoate (9), fat acids (10), beta-sitosterol (11), daucosterol (12), respectirely.
  
  
  CONCLUSIONS
  Three pentacyclic triterpene carboxylic acid (5-7) were isolated from Schisandreae for the first time.
authors.affiliation: School of Pharmacy, Yunnan University, Department of Chemistry, Dali College, Yunnan, China.
authors.forename: Jie
authors.initials: J
authors.lastname: Guo
authors.forename: Li-Hui
authors.initials: LH
authors.lastname: Liu
authors.forename: Shuang-Xi
authors.initials: SX
authors.lastname: Mei
authors.forename: Jing-Feng
authors.initials: JF
authors.lastname: Zhao
authors.forename: Zhi-Rong
authors.initials: ZR
authors.lastname: Ma
authors.forename: Liang
authors.initials: L
authors.lastname: Li
mesh_terms: D018547:Plant Stems / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry*; D032141:Schisandra / Q000737:chemistry*; D014315:Triterpenes / Q000737:chemistry / Q000302:isolation & purification*; D000097245:Ursolic Acid
chemical_list: D014315:Triterpenes; D000097245:Ursolic Acid; C487052:2 alpha,24-dihytroxyursolic acid; C487051:3 beta-O-acetylursolic acid