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.
São Paulo State University-UNESP, Instituto de Química, C.P. 355, 14801-970 Araraquara, São Paulo, Brazil.
Marcos B
MB
Machado
Lucia M X
LM
Lopes
D030022:Aristolochia / Q000737:chemistry* / Q000378:metabolism; D005419:Flavonoids / Q000737:chemistry* / Q000378:metabolism*; D015394:Molecular Structure; D018515:Plant Leaves / Q000737:chemistry
D005419:Flavonoids