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Sociedade Brasileira de Química, SBQ, Journal of the Brazilian Chemical Society, 9(20), 2009

DOI: 10.1590/s0103-50532009000900024

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Two new oleanane saponins from Chiococca alba (L.) Hitch.

Journal article published in 2009 by José D. de Souza Filho, Tinoco,Luzineide W., Ricardo M. Borges ORCID, Borges,Ricardo M., Luzineide W. Tinoco ORCID, N. dos Santos Barbi, José D. de Souza Filho, de Souza Filho, Antonio Jorge R. da Silva ORCID, Souza Filho,José D. De, Nancy dos Santos Barbi, Barbi,Nancy dos Santos, Silva,Antonio Jorge R. Da, Antonio Jorge R. da Silva
This paper is made freely available by the publisher.
This paper is made freely available by the publisher.

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Abstract

Two triterpene saponins were isolated from the ethanolic extract of the roots of Chiococca alba (L.) Hitch (Rubiaceae). Their structures were determined by ¹H and 13C 1D and 2D NMR and high resolution electrospray mass spectrometry as 3-O-β-D-glucopyranurosyl-3β-hydroxyolean-12,15-dien-28-oic acid 28-O-α-D-apiofuranosyl (1→3)-[α-D-apiofuranosyl (1→4)]-α-L-rhamnopyranosyl (1→2)-α-L-arabinopyranosyl ester (1) and 3-O-β-D-glucopyranurosyl-3β-hydroxyolean-12,15-dien-28-oic acid 28-O-α-D-apiofuranosyl (1→3)-α-L-rhamnopyranosyl (1→2)-α-L-arabinopyranosyl ester (2).