title: [Chemical constituents of roots of Celastrus orbiculatus].
abstract: OBJECTIVE
  To study the chemical constitutes of roots of Celastrus orbiculatus.
  
  
  METHODS
  The compounds were isolated by column chromatography and identified by spectroscopic methods including IR, MS and NMR.
  
  
  RESULTS
  Nine compounds were isolated and identified as sugiol (1), friedelane-3-one (2), salapermic acid (3), 28-hydroxyfriedelane-3-one (4), pristimerin (5), celastrol (6), beta-sitosterol (7), beta-daucosterol (8) and benzoic acid (9), respectively.
  
  
  CONCLUSIONS
  Compounds 2 and 4 are isolated from this plant for the first time.
authors.affiliation: Department of Pharmacy, Guangdong Provincial Hospital of TCM, Guangzhou 510120, China. zhangli5103@163.com
authors.forename: Li
authors.initials: L
authors.lastname: Zhang
authors.forename: Zu-Jiang
authors.initials: ZJ
authors.lastname: Xu
authors.forename: Yu-Jing
authors.initials: YJ
authors.lastname: Feng
authors.forename: Ding-Yong
authors.initials: DY
authors.lastname: Wang
mesh_terms: D031247:Celastrus / Q000737:chemistry*; D004224:Diterpenes / Q000737:chemistry / Q000302:isolation & purification; D009682:Magnetic Resonance Spectroscopy; D015394:Molecular Structure; D053978:Pentacyclic Triterpenes; D018517:Plant Roots / Q000737:chemistry*; D012855:Sitosterols / Q000737:chemistry / Q000302:isolation & purification; D014315:Triterpenes / Q000737:chemistry* / Q000302:isolation & purification
chemical_list: C545756:12 alpha-hydroxyfriedelane-3,15-dione; D004224:Diterpenes; D053978:Pentacyclic Triterpenes; D012855:Sitosterols; D014315:Triterpenes; C501333:sugiol; C025473:gamma-sitosterol; C050414:celastrol