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  • Title: Absolute configuration and complete assignment of 13C NMR data for new sesquiterpenes from Maytenus chiapensis.
    Author: Núñez MJ, Cortés-Selva F, Bazzocchi IL, Jiménez IA, González AG, Ravelo AG, Gavin JA.
    Journal: J Nat Prod; 2003 Apr; 66(4):572-4. PubMed ID: 12713421.
    Abstract:
    Five new dihydro-beta-agarofuran sesquiterpenes (1-5) were isolated from the leaves of Maytenus chiapensis. The structures of 1-5 were determined by means of 1D and 2D NMR techniques. A semiselective HMBC technique was applied in order to obtain complete (13)C NMR assignments. Absolute configurations were determined by CD studies and chemical correlations and on biogenetic grounds. Compound 4 showed weak activity against a multidrug-resistant Leishmania tropica line.
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