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  • Title: Dammarane triterpenoids from the roots of Gentiana rigescens.
    Author: Xu M, Wang D, Zhang YJ, Yang CR.
    Journal: J Nat Prod; 2007 May; 70(5):880-3. PubMed ID: 17375953.
    Abstract:
    Six new minor dammarane triterpenoids were isolated from the roots of Gentiana rigescens. These include one aglycone, gentirigenic acid (1), and five glycosides, gentirigeosides A-E (2-6). Their structures were elucidated through detailed spectroscopic analyses, including 1D and 2D NMR techniques, and enzymatic hydrolysis. Antifungal testing of these compounds showed that the glycosides gentirigeosides A (2), C (4), and E (6) had antifungal activity against the plant pathogen Glomerella cingulata.
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