Journal
TETRAHEDRON LETTERS
Volume 44, Issue 24, Pages 4511-4513Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/S0040-4039(03)01018-9
Keywords
Alternaria infectoria; Stemphyllium; Ulocladium; alpha-pyrone; chemotaxonomy
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A new metabolite, infectopyrone (1), has been isolated from the filamentous fungus Alternaria infectoria. The structure of 1 was elucidated by analysis of 2D NMR spectroscopic data. Compound 1 is an alpha-pyrone resembling known toxins, and is a useful phenotaxonomic marker for the A. infectoria species-group. Infectopyrone (1) was also produced by species within Stemphyllium and Ulocladium, and found in mouldy food. (C) 2003 Elsevier Science Ltd. All rights reserved.
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