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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
biochemistry, genetics and molecular biology
Triterpenoid saponin anthranilates from Albizia grandibracteata leaves ingested by primates in Uganda
Journal of Natural Products, Volume 68, No. 6, Year 2005
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Description
Three new oleanane-type triterpene saponins (1-3), named grandibracteosides A-C, were isolated from the methanolic extract of leaves Albizia grandibracteata, a species consumed by primates in the Kibale National Park, Uganda. The structures of the saponins were established using ID and 2D NMR experiments and mass spectrometry and confirmed by acid and alkaline hydrolysis. The crude extract and the pure compounds showed significant inhibitory activity against KB and MCF7 tumoral cell lines in vitro. The compounds are glycosides of acacic acid acylated by an o-aminobenzoyl unit. This is the first report of such ester saponins in dicotyledonous plants. Studies of the primate diet may provide a useful method for finding naturally occurring compounds of medicinal significance. © 2005 American Chemical Society and American Society of Pharmacognosy.
Authors & Co-Authors
Krief, Sabrina
France, Reims
Université de Reims Champagne-ardenne
France, Gif-sur-yvette
Institut de Chimie Des Substances Naturelles
France, Paris
Éco-anthropologie
Thoison, Odile
France, Gif-sur-yvette
Institut de Chimie Des Substances Naturelles
Sevénet, Thiérry
France, Gif-sur-yvette
Institut de Chimie Des Substances Naturelles
Wrangham, Richard W.
United States, Salem
Peabody Essex Museum
Lavaud, Catherine
France, Reims
Université de Reims Champagne-ardenne
Statistics
Citations: 63
Authors: 5
Affiliations: 4
Identifiers
Doi:
10.1021/np049576i
ISSN:
01633864
Study Locations
Uganda