title: [Phenolic acid derivatives from the rhizome of Fagopyrum cymosum].
abstract: OBJECTIVE
  To study the chemical constituents of Fagopyrum cymosum.
  
  
  METHODS
  The chemical constituents were isolated by various chromatographic methods and their structures were elucidated by the analysis of spectral data and physiochemical properties.
  
  
  RESULTS
  Four phenolic acid derivatives were isolated from F. cymosum. The chemical structures were elucidated as trans-p-hydroxy cinnamic methyl ester (I), 3, 4-dihydroxy benzamide (II), protocatechuic acid (III), protocatechuic acid methyl ester (IV).
  
  
  CONCLUSIONS
  Compounds I, II, IV were obtained from the genus Fagopyrum for the first time.
authors.affiliation: School of Traditional Chinese Medicines, Shengyang Pharmaceutical University, Shengyang 110016, China.
authors.forename: Meng
authors.initials: M
authors.lastname: Shao
authors.forename: Yue-hui
authors.initials: YH
authors.lastname: Yang
authors.forename: Hui-yuan
authors.initials: HY
authors.lastname: Gao
authors.forename: Bin
authors.initials: B
authors.lastname: Wu
authors.forename: Li-bo
authors.initials: LB
authors.lastname: Wang
authors.forename: Li-jun
authors.initials: LJ
authors.lastname: Wu
mesh_terms: D001549:Benzamides / Q000737:chemistry / Q000302:isolation & purification*; D002934:Cinnamates / Q000737:chemistry / Q000302:isolation & purification*; D019612:Fagopyrum / Q000737:chemistry*; D062385:Hydroxybenzoates / Q000737:chemistry / Q000302:isolation & purification; D010946:Plants, Medicinal / Q000737:chemistry*; D027343:Rhizome / Q000737:chemistry
chemical_list: D001549:Benzamides; D002934:Cinnamates; D062385:Hydroxybenzoates; C009091:protocatechuic acid