title: [Chemical constituents from herb of Alternanthera philoxeroides].
abstract: OBJECTIVE
  To study the active constituents from Alternanthera philoxeroides.
  
  
  METHODS
  The constituents were isolated with silica gel and Toyopearl HW-40C gel column chromatography and purified by HPLC. Their structures were elucidated by spectroscopy.
  
  
  RESULTS
  Nine compounds were isolated and identified as phaeophytin a (1), pheophytin a' (2), oleanoic acid (3), beta-sitosterol (4), 3beta-hydroxystigmast-5-en-7-one (5), alpha-spinasterol (6), 24-methylenecycloartanol (7), cycloeucalenol (8), phytol (9).
  
  
  CONCLUSIONS
  Compounds 1,2,5,7-9 were isolated from this plant for the first time.
authors.affiliation: College of Pharmaceuticals, Tianjin University, China.
authors.forename: Jin-bo
authors.initials: JB
authors.lastname: Fang
authors.forename: Hong-quan
authors.initials: HQ
authors.lastname: Duan
authors.forename: Yan-wen
authors.initials: YW
authors.lastname: Zhang
authors.forename: Takaishi
authors.initials: T
authors.lastname: Yoshihisa
mesh_terms: D027703:Amaranthaceae / Q000737:chemistry*; D002734:Chlorophyll / Q000737:chemistry / Q000302:isolation & purification*; D010836:Phytol / Q000737:chemistry / Q000302:isolation & purification*; D010840:Phytosterols / Q000737:chemistry / Q000302:isolation & purification*; D018515:Plant Leaves / Q000737:chemistry; D018547:Plant Stems / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry*
chemical_list: D010840:Phytosterols; C406457:phaeophytin a; D002734:Chlorophyll; D010836:Phytol; C007198:cycloleucalenol