title: [Studies on water-soluble chemical constituents in root of Achyranthes bidentata].
abstract: OBJECTIVE
  To study the water-soluble chemical constituents in root of Achyranthes bidentata.
  
  
  METHODS
  The chemical constituents were isolated by silica gel column chromatography and the structures were elucidated by the NMR spectra and physico-chemical properties.
  
  
  RESULTS
  Seven compounds were obtained and identified as n-butyl-beta-D-fructopyranoside (I), oleanoic acid (II), 3-O-[beta-D-glucopyranosyl], oleanoic acid 28-O-beta-D-glucopyranoside (III), allantoin (IV), 20-hydroxy ecdysone (V), glutamic acid (VI), 3-O-[beta-D-glucopyranosyl], oleanoic acid 28-O-beta-D-glucopyranosyl ester (VII).
  
  
  CONCLUSIONS
  Compounds III-VII were obtained from this plant for the first time.
authors.affiliation: Lanzhou Institute of Chemical and Physics, Chinese Academy of Science, Lanzhou 730000, China.
authors.forename: Tao
authors.initials: T
authors.lastname: Wang
authors.forename: Shu-ya
authors.initials: SY
authors.lastname: Cui
authors.forename: You-rei
authors.initials: YR
authors.lastname: Suo
authors.forename: Run-hua
authors.initials: RH
authors.lastname: Lu
mesh_terms: D029044:Achyranthes / Q000737:chemistry*; D000481:Allantoin / Q000737:chemistry / Q000302:isolation & purification*; D004441:Ecdysterone / Q000737:chemistry / Q000302:isolation & purification*; D018698:Glutamic Acid / Q000737:chemistry / Q000302:isolation & purification*; D018517:Plant Roots / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry*
chemical_list: D000481:Allantoin; D018698:Glutamic Acid; D004441:Ecdysterone