Saponinas triterpênicas de Tocoyena brasiliensis Mart. (Rubiaceae)
Carregando...
Data
2005-07-01
Autores
Hamerski, Lidilhone [UNESP]
Carbonezi, Carlos Alberto [UNESP]
Cavalheiro, Alberto José [UNESP]
Bolzani, Vanderlan da Silva [UNESP]
Young, Maria Cláudia Marx
Título da Revista
ISSN da Revista
Título de Volume
Editor
Resumo
The present communication reports the isolation and identification of four triterpenoid saponins from the chloroform extract of the leaves of Tocoyena brasiliensis: 3-O-β-D-quinovopyranosyl quinovic acid, 3-O-β-D- quinovopyranosyl cincholic acid, 3-O-β-D-glucopyranosyl quinovic acid and the 28-O-β-D-glucopyranosyl ester derivative of quinovic acid as binary mixtures, respectively. From the ethanol extract a flavonoid identified as ramnazin-3-O-rutinoside was obtained. The structures of these compounds were assigned by data analysis of ID and 2D NMR spectrometry and comparison with data recorded in the literature for these compounds.
Descrição
Palavras-chave
Antifungal, Saponins, Tocoyena brasiliensis
Como citar
Quimica Nova, v. 28, n. 4, p. 601-604, 2005.