title: [Isolation and identification of triterpenoids from root of Achyranthes bidentata in Henan].
abstract: OBJECTIVE
  To investigate the triterpenoids from root of Achyranthes bidentata in Henan.
  
  
  METHODS
  Sephadex, normal-and reversed-phase column chromatographies were applied for the isolation and purification. The structure determinations were performed by means of physiochemical properties, MS and NMR data analyses.
  
  
  RESULTS
  Seven compounds were isolated from the water soluble fraction in root of A. bidentata, and determined as achyranthoside A (1), achyranthoside E (2), momordin Ib (3), chikusetsusaponin IVa (4), chikusetsusaponin IVa methyl ester (5), chikusetsusaponin V (6), chikusetsusaponin V methyl ester (7).
  
  
  CONCLUSIONS
  Compounds 1 and 2 were isolated from the natural resources for the first time.
authors.affiliation: School of Chemistry and Chemical Engineering, Nanjing University, China.
authors.forename: Shu-ping
authors.initials: SP
authors.lastname: Jia
authors.forename: Zhi-yong
authors.initials: ZY
authors.lastname: Yu
authors.forename: Zhi-fang
authors.initials: ZF
authors.lastname: Hao
authors.forename: Jian-xin
authors.initials: JX
authors.lastname: Li
mesh_terms: D029044:Achyranthes / Q000737:chemistry*; D008968:Molecular Conformation; D015394:Molecular Structure; D009828:Oleanolic Acid / Q000031:analogs & derivatives* / Q000737:chemistry / Q000302:isolation & purification; D018517:Plant Roots / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry*; D012503:Saponins / Q000737:chemistry / Q000302:isolation & purification*
chemical_list: D012503:Saponins; C522635:achyranthoside A; C522636:achyranthoside E; C098580:chikusetsu saponin IVa; D009828:Oleanolic Acid