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Planta Med 1996; 62(6): 523-527
DOI: 10.1055/s-2006-957962
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© Georg Thieme Verlag Stuttgart · New York

A New Triterpenoid Saponin, Bredemeyeroside B, from the Roots of Bredemeyera floribunda

Maria do Rosário Daros1 , Francisco José de Abreu Matos2 , José Paz Parente1
  • 1Núcleo de Pesquisas de Produtos Naturais, Universidade Federal do Rio de Janeiro, 21941-590 Rio de Janeiro, Brasil
  • 2Departamento de Química Orgânica e Inorgânica, Universidade Federal do Ceará, 60000-000 Fortaleza, Brasil
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Publication History

1996

1996

Publication Date:
04 January 2007 (online)

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Abstract

A new triterpenoid saponin named bredemeyeroside B has been isolated from the roots of Bredemeyera floribunda and its structure elucidated as 3-O-β-D-glucopyranosyl-2β,3β,27-trihydroxyolean-12-en-23,28-dioic acid 28-O-β-D-xylopyranosyl-(1→4)-[β-D-apiofuranosyl-(1→3)]-α-L-rhamnopyranosyl-(1→2)-[α-L-rhamnopyranosyl-(1→3]-β-D-fucopyranoside by means of MS, NMR and chemical evidence. In addition rutin was also isolated. In laboratory tests bredemeyeroside B showed snake venom antidote activity.

Key words

Bredemeyera floribunda Willd. - Polygalaceae - roots - bredemeyeroside B - bidesmosidic triterpenoid glycoside - presenegenin