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Título: | Intermediates with biosynthetic implications in de novo production of phenyl-phenalenone-type phytoalexins by Musa acuminata revised structure of emenolone |
Autor: | Gutiérrez Luis, Javier; Fletcher, Winston Q.; Echeverri, Fdo.; Abad Grillo, T.; Perales, Áurea; González-Pérez, José Antonio CSIC ORCID | Fecha de publicación: | 3-abr-1995 | Editor: | Elsevier | Citación: | Tetrahedron 51(14): 4117–4130 (1995) | Resumen: | Three new intermediates (1 – 3) in de novo biosynthetic pathway to phenyl-phenalenone-type phytoalexins have been isolated from rhizomes of Musa acuminata infected with the fungus Fusarium oxysporum. The structures of the new pre-phytoalexins were elucidated on the basis of spectroscopic evidences, chemical correlation and acid catalyzed biomimetic cyclization of 1 to emenolone (4), isolated from the same source and whose previously reported structure has been unambiguously corrected by X-ray diffraction analysis. The chemical shift for all of the hydrogen and carbon atoms in the substances were unambiguously established by mono- and bidimensional, homo- and heteronuclear NMR experiments (1H NMR, 13C NMR, COSY, ROESY, HMQC and HMBC). | Versión del editor: | http://dx.doi.org/10.1016/0040-4020(95)00129-V | URI: | http://hdl.handle.net/10261/59872 | DOI: | 10.1016/0040-4020(95)00129-V | ISSN: | 0040-4020 |
Aparece en las colecciones: | (IRNAS) Artículos |
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