title: [Chemical constituents from Corydalis humosa].
abstract: OBJECTIVE
  To study the chemical constituents of Corydalis humosa Migo.
  
  
  METHODS
  Some chromatography methods were used to separate the chemical constituents of this plant. Their structures were determined by NMR and MS spectral data.
  
  
  RESULTS
  Six compounds were isolated from the 95% ethanolic extract of the tubers of C. humosa. The structures of these compounds were identified as tetrahydropalmatine (1), jatrorrhizine (2), berberine (3), tetrahydroberberine (4), palmaline (5) and (-)-tetrahydrocoptisine (6) respectively.
  
  
  CONCLUSIONS
  Compounds 1-3 were isolated from this plant for the first time.
authors.affiliation: Institute of Medicine Economy of South, State Food & Drug Administration, Guangzhou 510405.
authors.forename: Jianhong
authors.initials: J
authors.lastname: Tao
authors.forename: Xiaoqi
authors.initials: X
authors.lastname: Zhang
authors.forename: Wencai
authors.initials: W
authors.lastname: Ye
authors.forename: Shouxun
authors.initials: S
authors.lastname: Zhao
mesh_terms: D000470:Alkaloids / Q000737:chemistry / Q000302:isolation & purification*; D001599:Berberine / Q000031:analogs & derivatives* / Q000737:chemistry / Q000302:isolation & purification; D001600:Berberine Alkaloids / Q000737:chemistry / Q000302:isolation & purification*; D002855:Chromatography, Thin Layer; D031311:Corydalis / Q000737:chemistry*; D000431:Ethanol; D010946:Plants, Medicinal / Q000737:chemistry*; D027343:Rhizome / Q000737:chemistry; D013055:Spectrophotometry, Infrared
chemical_list: D000470:Alkaloids; D001600:Berberine Alkaloids; C055785:jatrorrhizine; D001599:Berberine; D000431:Ethanol; C014215:tetrahydropalmatine