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Two triterpenoid saponins from Heinsia crinata
Babady-Bila1, C Wynants, S Toppet
1Laboratoire de Chimie des Substances Naturelles, Université de Kinshasa, Zaïre.
Phytochemistry
|August 1, 1994
Abstract:
Two new triterpenoid saponins isolated from the root bark of Heinsia crinata were characterized as heinsiagenin A-3 beta-O-(beta-D-glucopyranosyl-(1-->2)-beta-D-glucopyranosyl- (1-->6)-[alpha-L-rhamnopyranosyl-(1-->2)]-beta-D-glucopyranosyl-(1-->2)- beta-D-glucopyranoside) and heinsiagenin A-3 beta-O-(alpha-L-rhamnopyranosyl-(1-->2)-beta-D- glucopyranosyl-(1-->2)-beta-D-glucopyranoside). The structures were deduced mainly from a combination of 1- and 2D NMR experiments.