Minor metabolites of the fungus Cercosporaarachidicola have been identified as the known pigments versicolorin B (3), averantin (4), and nidurufin (2b) and the new, but closely related compounds 4′-deoxydothistromin (1b), 3′,4′-dehydro-4′-deoxydothistromin (5a), and 4′,5-bisdeoxydothistromin (1d). The 1H and 13Cmr spectra of 1d, 2b, and the tetracetates 1c and 5b are presented in detail. Biosynthetic and chemotaxonomic aspects are discussed.
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Stoessl et al. (1985) studied this question.
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