title: [Studies on chemical constituents from the root of Mirablis jalapa].
abstract: OBJECTIVE
  To investigate the chemical constituents from the root of Mirabilis jalapa.
  
  
  METHODS
  Compounds were isolated from 75% 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
  Four compounds were obtained and identified as (2, 5-dioxoimidazolidin-4-yl)-urea (1), glycerin monoeicosate (2), boeravinone (3) and beta-sitosterol (4).
  
  
  CONCLUSIONS
  Compound (2) is a new compound, and compound (1) was obtained from this plant for the first time.
authors.affiliation: The Key Laboratory of Chemistry for Natural Products of Guizhou Province, Chinese Academy of Sciences, Guiyang 550002, Guizhou, China.
authors.forename: Ying
authors.initials: Y
authors.lastname: Wei
authors.forename: Xiao-sheng
authors.initials: XS
authors.lastname: Yang
authors.forename: Xiao-jiang
authors.initials: XJ
authors.lastname: Hao
mesh_terms: D000481:Allantoin / Q000737:chemistry / Q000302:isolation & purification*; D015777:Eicosanoids / Q000737:chemistry / Q000302:isolation & purification*; D005990:Glycerol / Q000031:analogs & derivatives* / Q000737:chemistry / Q000302:isolation & purification*; D039282:Mirabilis / Q000737:chemistry*; D018517:Plant Roots / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry*; D012855:Sitosterols / Q000737:chemistry / Q000302:isolation & purification
chemical_list: D015777:Eicosanoids; D012855:Sitosterols; D000481:Allantoin; C025473:gamma-sitosterol; D005990:Glycerol