Wild daffodils of the section Ganymedes from the Iberian Peninsula as a source of mesembrane alkaloids
2013
Pigni, Natalia B. | Ríos, Segundo | Luque, F. Javier | Viladomat, Francesc | Codina, Carles | Bastida, Jaume | Ríos, Segundo | Universidad de Alicante. Departamento de Ciencias Ambientales y Recursos Naturales | Universidad de Alicante. Centro Iberoamericano de la Biodiversidad | Biodiversidad y Biotecnología aplicadas a la Biología de la Conservación
The aim of this work was to perform a detailed study of the alkaloid content of Narcissus triandrus, as well as a complete analysis of the alkaloid profile of 18 wild populations, comprising all the taxa of the section Ganymedes. Through the application of a combination of spectroscopic and chromatographic methods, the isolation and structural elucidation of 3 compounds are reported for the first time from a natural source (2-oxomesembrenone, 7,7a-dehydromesembrenone and 2-oxoepimesembranol), together with the identification of 5 major common mesembrane alkaloids. Additionally, the GC–MS analysis of the alkaloid profile demonstrated the regular presence of mesembranes in all the studied plants, showing mesembrenone as the predominant compound without any typical Amaryllidaceae alkaloid being detected.
显示更多 [+] 显示较少 [-]This work was performed within the framework of projects 2009-SGR-1060 and 2009-SGR-298 (Generalitat de Catalunya), and SAF2011-27642 (DGICYT).
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