title: [Studies on the flavonoid compounds of Rhododendron anthopogonoides].
abstract: OBJECTIVE
  To investigate the flavonoid constituents of the Rhododendron anthopogonoides systematically.
  
  
  METHODS
  The chemical components were isolated by sephadex LH-20, polyamide and silica gel column chromatography. The chemical structures were elucidated on the basis of physic-chemical properties and spectral data.
  
  
  RESULTS
  Eight compounds were isolated and identified as: Quercetin (I), isorhamnetin (II), hyperoside (III), cacticin (IV), hirsutine (V), kaemferol-3-beta-D-galactoside (VI) myricetin-3-beta-D-Xyloside (VII), (6''-O-(4-Hydroxybenzoyl) hyperoside (VIII).
  
  
  CONCLUSIONS
  Compounds II, IV, V, VI, VII, and VIII were obtained from this plant for the first time. Compounds VII and VIII were separated from the Ericaceae plant for the first time.
authors.affiliation: Institute of Materia Medica, Chinese Academy of Medical Science, Peking Union Medical College, Beijing 100050, China.
authors.forename: Sheng-jun
authors.initials: SJ
authors.lastname: Dai
authors.forename: Ruo-yun
authors.initials: RY
authors.lastname: Chen
authors.forename: De-quan
authors.initials: DQ
authors.lastname: Yu
mesh_terms: D000470:Alkaloids / Q000737:chemistry / Q000302:isolation & purification*; D044948:Flavonols / Q000737:chemistry / Q000302:isolation & purification*; D018515:Plant Leaves / Q000737:chemistry; D018547:Plant Stems / Q000737:chemistry; D010946:Plants, Medicinal / Q000737:chemistry*; D011794:Quercetin / Q000031:analogs & derivatives; D029793:Rhododendron / Q000737:chemistry*
chemical_list: D000470:Alkaloids; D044948:Flavonols; C047368:3-methylquercetin; D011794:Quercetin; C038369:hirsutine