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Two new isoflavonoids from Bowdichia virgilioides
Débora B F Juck1, Larissa C De Rezende, Juceni P David
1Instituto de Química, Universidade Federal da Bahia, Campus Ondina, Salvador, BA, 40170-290, Brazil.
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.
