Studies on the Metaboic Products of a Strain of Aspergillus fumigatus (DH 413). I. Isolation and Chemical Structures of Metabolites

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Abstract
Several fungal pigments were isolated by cultivation of a strain of A. fumigatus from the dust of asthmatic patients'' rooms. Spinulosin, fumigatin, and its quinol (m.p 107.5[degree]-109[degree]) were determined; the melting point of the last differed from that given in the literature (99-101[degree]). The chemical structure of a new metabolite (m.p,, 74[degree]) was determined to be 2-methyl-5-methoxy-6-hydroxy-p-benzoquinone 2,3-epoxide. Another compound (m.p. 182[degree]) was found to have a closely related structure. A compound (m.p. 204[degree]) had a p-quinone moiety in its structure.

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