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Prenylated Isoflavonoids from the Root Bark of Erythrina vogelii

Queiroz, Emerson Ferreira
Atindehou, Kagoyire K.
Terreaux, Christian
Antus, Sandor
Published in Journal of Natural Products. 2002, vol. 65, no. 3, p. 403 - 406
Abstract Four new prenylated isoflavonoids, vogelins D-G (1-4), were isolated from the CH2Cl2 extract of Erythrina vogelii root bark in addition to the known compounds isolupalbigenin (5), ficuisoflavone (6), ulexone (7), isochandalon (8), and isoderrone (9). The structures 1-4 were elucidated by spectroscopic and chemical methods. The absolute configuration of compound 1 was determined on the basis of its CD spectrum. Possible biogenetic relationships among the E. vogelii isoflavonoids are briefly discussed.
Keywords prenylated isoflavonoidsspectroscopicchemical methodsbiogeneticE. vogelii isoflavonoids.
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