title: [Studies on chemical constituents in roots of Euphorbia soongarica].
abstract: OBJECTIVE
  To study the chemical constituents of the roots of Euphorbia soongarica (Xinjiang origin).
  
  
  METHODS
  Compounds were isolated and purified by repeated normal column chromatography, preparative thin layer chromatography and Sephadex LH - 20 chromatography. The chemical structures were elucidated by NMR and MS spectra.
  
  
  RESULTS
  Ten chemical constituents were isolated from the n-BuOH fraction and identified as ellagic acid (1) , 3, 3'-di-O-methylellagic acid (2) , 3, 3'-di-O-methylellagic acid-4'-O-alpha-D-arabinfuranoside (3), 3, 3'-di-O-methylellagic acid-4'-O-beta-D-xylopyranoside (4), 3, 3'-di-O-methylellagic acid-4-O-beta-D-glucopyranoside (5), 3, 3', 4'-tri-O-methylellagic acid (6), 3-O-methylellagic acid-4'-O-beta-D-xylopyranoside (7), 3, 3', 4-tri-O-methylellagic acid-4'-O-beta-D-glucopyranoside (8), brevifolin (9) and ethyl brevifolin carboxylate (10).
  
  
  CONCLUSIONS
  All of above compounds were obtained from this plant for the first time.
authors.affiliation: Department of Traditional Chinese Medicine Pharmaceutics, China Pharmaceutical University, Nanjing 210038, China.
authors.forename: Xin-Hong
authors.initials: XH
authors.lastname: Shi
authors.forename: Xiao-Li
authors.initials: XL
authors.lastname: Du
authors.forename: Ling-Yi
authors.initials: LY
authors.lastname: Kong
mesh_terms: D001578:Benzopyrans / Q000737:chemistry / Q000302:isolation & purification*; D004610:Ellagic Acid / Q000031:analogs & derivatives* / Q000737:chemistry / Q000302:isolation & purification*; D028481:Euphorbia / Q000737:chemistry*; D018517:Plant Roots / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry*
chemical_list: D001578:Benzopyrans; C053047:ethyl brevifolincarboxylate; D004610:Ellagic Acid; C050401:3,3'-di-O-methylellagic acid