Tetraflavonoid and biflavonoids from Aristolochia ridicula

Biflavones, a chalcone–flavone, and a tetraflavonoid with a new carbon skeleton were isolated from the leaves of Aristolochia ridicula. Their structures were determined by chemical derivatizations and spectrometric analyses. Biflavones, a chalcone–flavone, and a tetraflavonoid with a new carbon skel...

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Veröffentlicht in:	Phytochemistry (Oxford) 2008-12, Vol.69 (18), p.3095-3102
Hauptverfasser:	Machado, Marcos B., Lopes, Lucia M.X.
Format:	Artikel
Sprache:	eng
Schlagworte:	Aristolochia Aristolochia - chemistry Aristolochia - metabolism Aristolochia ridicula Aristolochiaceae Biflavonoid chalcones Chalcone–flavone chemical constituents of plants chemical structure Flavonoid flavonoids Flavonoids - chemistry Flavonoids - metabolism medicinal plants Molecular Structure Plant Leaves - chemistry ridiculuflavone Ridiculuflavone D ridiculuflavonylchalcone Ridiculuflavonylchalcone B Ridiculuflavonylchalcone C spectral analysis stereochemistry Structural elucidation Tetraflavonoid
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Beschreibung
Zusammenfassung:	Biflavones, a chalcone–flavone, and a tetraflavonoid with a new carbon skeleton were isolated from the leaves of Aristolochia ridicula. Their structures were determined by chemical derivatizations and spectrometric analyses. Biflavones, a chalcone–flavone, and a tetraflavonoid with a new carbon skeleton were isolated from the leaves of Aristolochia ridicula. Their structures were determined by chemical derivatizations and spectrometric analyses.
ISSN:	0031-9422 1873-3700
DOI:	10.1016/j.phytochem.2008.04.025