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N alpha-dimethylcoprogens. Three novel trihydroxamate siderophores from pathogenic fungi
M A Jalal1, S K Love, D van der Helm
1Department of Chemistry, University of Oklahoma, Norman 73019.
Biology of Metals
|January 1, 1988
Abstract:
Three novel siderophores have been isolated from a highly pathogenic strain of Alternaria longipes (ATCC 26293). The compounds are N alpha-dimethylated analogs of coprogen, neocoprogen I and isoneocoprogen I. Structures of the compounds have been determined by 1H- and 13C-NMR, fast-atom-bombardment (FAB) mass spectroscopy and partial hydrolysis. One of the new compounds, N alpha-dimethylcoprogen, is also produced, as the major siderophore, in another fungus, Fusarium dimerum.