title: [Studies on chemical constituents of the roots of Angelica pubescens].
abstract: OBJECTIVE
  To study the chemical constituents of the roots of Angelica pubescens.
  
  
  METHODS
  Fresh roots of Angelica pubescens were extracted with EtOH,the chemical constituents in the extract were isolated by column chromatography as macroporous absorption resin,and ODS etc. Their structures were confirmed by spectral analysis (NMR, MS).
  
  
  RESULTS
  Seven compounds were isolated and their structures were identified as nodakenetin (I), umbelliferone (II), columbianetin (III), beta-D-glucosyl-columbianetin (IV), columbianin (V), tert. -O-beta-D- glucopyranosyl -(R)-by-akangelicin (VI) and sec. -O-beta-D- glucopyranosyl-(R) -byakangelicin (VII).
  
  
  CONCLUSIONS
  Compound IV, VI and VII are isolated from Angelica pubescens for the first time.
authors.affiliation: Jiangsu Institute of Botany, CAS, Nanjing Botanical Garden Mem Sun Yat-Sen, Nanjing 210014, China.
authors.forename: Xi-Fei
authors.initials: XF
authors.lastname: Ding
authors.forename: Xu
authors.initials: X
authors.lastname: Feng
authors.forename: Yun-Fa
authors.initials: YF
authors.lastname: Dong
authors.forename: Xing-Zeng
authors.initials: XZ
authors.lastname: Zhao
authors.forename: Yu
authors.initials: Y
authors.lastname: Chen
authors.forename: Ming
authors.initials: M
authors.lastname: Wang
mesh_terms: D000157:Aconitine / Q000031:analogs & derivatives / Q000737:chemistry / Q000302:isolation & purification; D029969:Angelica / Q000737:chemistry*; D003374:Coumarins / Q000737:chemistry / Q000302:isolation & purification*; D011564:Furocoumarins / Q000737:chemistry / Q000302:isolation & purification*; D005960:Glucosides / Q000737:chemistry / Q000302:isolation & purification; D009682:Magnetic Resonance Spectroscopy; D015394:Molecular Structure; D018517:Plant Roots / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry*; D014468:Umbelliferones / Q000737:chemistry / Q000302:isolation & purification*
chemical_list: C457321:8-O-methylcolumbianine; D003374:Coumarins; D011564:Furocoumarins; D005960:Glucosides; D014468:Umbelliferones; C062747:columbianetin glucopyranoside; C031477:7-hydroxycoumarin; C001684:marmesin; D000157:Aconitine