O reestudo do extrato clorofórmico das folhas de Caesalpinia pyramidalis (Caesalpinioidea, Fabaceae) forneceu, além do novo biflavonóide denominado caesalflavona, podocarpusflavona A, agathisflavona, apigenina, kaempferol, ...

A new flavone dimer, 3-hydroxy-4′,5,7-trimethoxyflavone-(6→8′′)-3′′-hydroxy-3′′′,4′′′, 5′′,7′′-tetramethoxyflavone, together with amenthoflavone, have been isolated from the leaves of Ouratea multiflora. Its structure was ...

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. ...