Abstract
Three new polyoxygenated triterpenes and six new quinovic acid glycosides have been isolated from Uncaria tomentosa. The triterpenes are based on ursolic or quinovic acid structures; the glycosides have a C-3, a C-3,27 or a C-27 glycosylation pattern, and the sugar moietics are made up of one to three hexopyranoses (rhamnose, glucose, quinovose, galactose). Their structures were determined by spectral methods. Copyright © 1997 Published by Elsevier Science Ltd. All rights reserved
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