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Tagetolone and tagetenolone: two phytotoxic polyketides from Alternaria tagetica
M M Gamboa-Angulo1, K García-Sosa, F Alejos-González
1Grupo de Química Orgánica, Unidad de Biotecnología, Centro de Investigación Científica de Yucatán A.C., Calle 43 No. 130, Colonia Chuburná, Mérida, Yucatán, México 97200.
Journal of Agricultural and Food Chemistry
|April 21, 2001
Abstract:
Two new phytotoxic polyketides, tagetolone (1) and tagetenolone (2), in addition to tyrosol and p-hydroxybenzoic acid, have been isolated from the organic crude extract of culture filtrates from the fungal pathogen Alternaria tagetica. Complete characterization of all structures was carried out following a careful analysis of their spectroscopic data (IR, MS, (1)H and (13)C NMR, and 2D NMR experiments).