title: [Two new flavonoids from the flower of Castanea mollissima Blume].
abstract: OBJECTIVE
  To study the bioactive constituents from the flower of Castanea mollissima Blume.
  
  
  METHODS
  Compounds were isolated and purified by column chromatography on silica gel and polyamide. Structures were determined by various spectroscopic data,including UV, IR, 1H and 13CNMR, EIMS and FABMS, 1H-13C-COSY and HMBC.
  
  
  RESULTS
  Two compounds were isolated from the ethyl acetate fraction of 95% ethanol extract and the structures were elucidated as kaempferol-3-O-[6"-(E)-p-coumaroyl]-alpha-D-mannopyranoside (1) and kaempferol-3-O-[6", 4"-di-(E)-p-coumaroyl]-alpha-D-mannopyranoside (2).
  
  
  CONCLUSIONS
  Compounds 1 and 2 are new compounds, named castanoside A and B respectirely.
authors.affiliation: Institute of Materia Medica, Shandong Academy of Medical Science, Jinan 250062, China.
authors.forename: Si
authors.initials: S
authors.lastname: Wang
authors.forename: Wen-zhao
authors.initials: WZ
authors.lastname: Tang
authors.forename: Xing-bao
authors.initials: XB
authors.lastname: Ding
mesh_terms: D029962:Fagaceae / Q000737:chemistry*; D035264:Flowers / Q000737:chemistry; D005960:Glucosides / Q000737:chemistry / Q000302:isolation & purification*; D044949:Kaempferols / Q000737:chemistry / Q000302:isolation & purification*; D008362:Mannosides / Q000737:chemistry / Q000302:isolation & purification*; D008968:Molecular Conformation; D015394:Molecular Structure; D010946:Plants, Medicinal / Q000737:chemistry*
chemical_list: D005960:Glucosides; D044949:Kaempferols; D008362:Mannosides; C495714:kaempferol-3-O-(6'',4''-di-p-coumaroyl)mannopyranoside; C495713:kaempferol-3-O-(6''-p-coumaroyl)mannopyranoside