Perylene derivatives produced by Alternaria alternata, an endophytic fungus isolated from Laurencia species
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Perylene derivatives produced by Alternaria alternata, an endophytic fungus isolated from Laurencia species
Nat Prod Commun.
2009 Nov.
Abstract
Two new perylene derivatives, 7-epi-8-hydroxyaltertoxin I (1) and 6-epi-stemphytriol (2), along with two known compounds stemphyperylenol (3) and altertoxin I (4) were isolated from Alternaria alternata, a marine endophytic fungus derived from an unidentified algal species of the genus Laurencia. Structures of compounds 1-4 were determined on the basis of detailed spectroscopic analysis, as well as by comparison with literature reports. The antimicrobial activities of compounds 1 and 3 against Staphylococcus aureus, Escherichia coli, and Aspergillus niger were evaluated; neither showed obvious activity.
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