title: [Chemical constituents from root bark of Dictamnus dasycarpus].
abstract: OBJECTIVE
  To isolate and identify the chemical constituents from the root bark of Dictamnus dasycarpus.
  
  
  METHODS
  Silica gel, Sephadex LH-20, ODS and PTLC were employed for the isolation and purification of chemical constituents. The structures were identified on the basis of spectral data and physicochemical examination.
  
  
  RESULTS
  Thirteen compounds were isolated and identified as follows: rutaevin (1), obacunone (2), fraxinellone (3), limonin (4), dictamnine (5), beta-sitosterol (6), 5-hydroxylmethylfuraldehyde (7), daucosterol (8), 3beta-hydroxy-cholesta-5-ene (9), fraxinellonone (10), rutin (11), quercetin (12) and scopoletin (13).
  
  
  CONCLUSIONS
  Compounds 7 and 9 are isolated from this genus for the first time.
authors.forename: Yuan-Yuan
authors.initials: YY
authors.lastname: Bai
authors.forename: Wen-Zhao
authors.initials: WZ
authors.lastname: Tang
authors.forename: Xiao-Jing
authors.initials: XJ
authors.lastname: Wang
mesh_terms: D036905:Dictamnus / Q000737:chemistry*; D004365:Drugs, Chinese Herbal / Q000737:chemistry* / Q000302:isolation & purification; D005662:Furaldehyde / Q000031:analogs & derivatives / Q000737:chemistry / Q000302:isolation & purification; D015394:Molecular Structure; D024301:Plant Bark / Q000737:chemistry*; D018517:Plant Roots / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry*; D013056:Spectrophotometry, Ultraviolet; D013261:Sterols / Q000737:chemistry / Q000302:isolation & purification
chemical_list: C511680:3beta,11-dihydroxy-5beta,6beta-epoxy-24-methylene-9,11-secocholestan-9-one; D004365:Drugs, Chinese Herbal; D013261:Sterols; C008046:5-hydroxymethylfurfural; D005662:Furaldehyde