Biflavonoids and other phenolics from Caesalpinia pyramidalis (Fabaceae)

The chloroform extract of the leaves of Caesalpinia pyramidalis (Caesalpinioidea, Fabaceae) yielded the new biflavonoid named caesalflavone, as well as podocarpusflavone A, agathisflavone, apigenin and kaempferol. The chloroform extract of the trunk wood gave 4,4'-dihydroxy-2'-methoxychalcone, (-)-syringaresinol, and methyl gallate. Biflavonoids were not found in trunk wood. Until now, C. pyramidalis is the first species in the genus to present biflavonoids. The structural elucidation of the isolated compounds and their derivatives were based on MS, IR, UV, 1D and 2D NMR spectral analyses.

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Bibliographic Details
Main Authors: Bahia,Marcus V., Santos,Jamile B. dos, David,Juceni P., David,Jorge M.
Format: Digital revista
Language:English
Published: Sociedade Brasileira de Química 2005
Online Access:http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532005000800017
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