title: [Studies on the chemical constituents from Euphorbia chrysocoma].
abstract: OBJECTIVE
  To study the chemical constituents from the aerial part of Euphorbia chrysocoma.
  
  
  METHODS
  All compounds were isolated and purified by many methods, including siliga gel and reversed phase RP-18 column chromatographies, preparative thin layer chromatography, Sephadex LH-20, and recrystallization. Their structures were mainly elucidated by ESI-MS and NMR spectra and their physical characters.
  
  
  RESULTS
  Six compounds were isolated from the petroleum ether section from 75% ethanol extraction of the material. Their structures were identified as taraxerol (1), epitaraxerol (2), beta-sistosterol (3), beta-sitostenone (4), jolkinolide E (5), and sesamin (6).
  
  
  CONCLUSIONS
  Compounds 1, 2, 4, 5, and 6 are isolated from this plant for the first time.
authors.affiliation: The College of Life Science, Guizhou University, Guiyang 550025, China. chunyong20@hotmail.com
authors.forename: Chun-yong
authors.initials: CY
authors.lastname: Jiang
authors.forename: Shu-zhen
authors.initials: SZ
authors.lastname: Mu
authors.forename: Bin
authors.initials: B
authors.lastname: Deng
authors.forename: Yong-hui
authors.initials: YH
authors.lastname: Ge
authors.forename: Jian-xin
authors.initials: JX
authors.lastname: Zhang
authors.forename: Xiao-jiang
authors.initials: XJ
authors.lastname: Hao
mesh_terms: D004149:Dioxoles / Q000737:chemistry / Q000302:isolation & purification; D004224:Diterpenes / Q000737:chemistry / Q000302:isolation & purification*; D028481:Euphorbia / Q000737:chemistry*; D017705:Lignans / Q000737:chemistry / Q000302:isolation & purification; D015394:Molecular Structure; D009828:Oleanolic Acid / Q000031:analogs & derivatives* / Q000737:chemistry / Q000302:isolation & purification; D035261:Plant Components, Aerial / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry*; D012855:Sitosterols / Q000737:chemistry / Q000302:isolation & purification
chemical_list: D004149:Dioxoles; D004224:Diterpenes; D017705:Lignans; D012855:Sitosterols; C095253:jolkinolide E; C025473:gamma-sitosterol; D009828:Oleanolic Acid; C005802:taraxerol; C054125:sesamin