title: Two new isoflavonoids from Bowdichia virgilioides.
abstract: Two new isoflavonoids 7,8,4'-trimethoxyisoflavone and 7,8,4'-trimethoxyisoflavanone and calycosin (7,3'-hydroxy-4'-methoxyisoflavone) were isolated from the wood of the leguminous tree Bowdichia virgilioides by usual chromatographic procedures. Besides these compounds the pterocarpane (-)-maackianin, isoliquiritigenin (4,2',4'-trihydroxychalcone), and the hydrobenzylfurane derivative bowdenol were also obtained. The structures of these new compounds were determinated by MS and 1D and 2D NMR spectral analysis.
authors.affiliation: Instituto de Química, Universidade Federal da Bahia, Campus Ondina, Salvador, BA, 40170-290, Brazil.
authors.forename: Débora B F
authors.initials: DB
authors.lastname: Juck
authors.forename: Larissa C
authors.initials: LC
authors.lastname: De Rezende
authors.forename: Juceni P
authors.initials: JP
authors.lastname: David
authors.forename: Luciano P
authors.initials: LP
authors.lastname: De Queiroz
authors.forename: Jorge M
authors.initials: JM
authors.lastname: David
mesh_terms: D007887:Fabaceae / Q000737:chemistry*; D044950:Flavanones / Q000737:chemistry / Q000302:isolation & purification*; D007529:Isoflavones / Q000737:chemistry / Q000302:isolation & purification*; D009682:Magnetic Resonance Spectroscopy; D021241:Spectrometry, Mass, Electrospray Ionization
chemical_list: C508654:7,8,4'-trimethoxyisoflavanone; C508655:7,8,4'-trimethoxyisoflavone; D044950:Flavanones; D007529:Isoflavones