title: [A new lignan glycoside from the flower of Castanea mollissima Blume].
abstract: OBJECTIVE
  To study the bioactive constituents of the flower of Castanea mollissima Blume.
  
  
  METHODS
  Compounds were isolated and purified by column chromatography of silica gel and TLC. Structures were determined by various spectroscopic data, including IR, 1HNMR and 13CNMR, EIMS, FABMS and HMBC as well as comparison of the data with those reported in literatures.
  
  
  RESULTS
  Five compounds were isolated and elucidated as myricetin (I), quercetin (II), gallic acid (III), 4-quinolinone-2-caboxylic acid (IV), (+) -isolariciresinol-9'-O-alpha-L-rhamnoside (V).
  
  
  CONCLUSIONS
  These compounds were separated from the flower for the first time and compound V is a new compounds, named chestnutlignansoide.
authors.affiliation: Institute of Materia Medica, Shandong Academy of Medical Science, Jinan 250062, China. twzsd@sina.com
authors.forename: Wen-Zhao
authors.initials: WZ
authors.lastname: Tang
authors.forename: Xing-Bao
authors.initials: XB
authors.lastname: Ding
authors.forename: Yi-Zhou
authors.initials: YZ
authors.lastname: Xin
mesh_terms: D029962:Fagaceae / Q000737:chemistry*; D005419:Flavonoids / Q000737:chemistry / Q000302:isolation & purification; D035264:Flowers / Q000737:chemistry; D015394:Molecular Structure; D009284:Naphthols / Q000737:chemistry / Q000302:isolation & purification*; D010946:Plants, Medicinal / Q000737:chemistry*; D011794:Quercetin / Q000737:chemistry / Q000302:isolation & purification; D012210:Rhamnose / Q000031:analogs & derivatives* / Q000737:chemistry / Q000302:isolation & purification*
chemical_list: D005419:Flavonoids; D009284:Naphthols; C494586:isolariciresinol-9'-O-rhamnoside; C040015:myricetin; D011794:Quercetin; D012210:Rhamnose