Biological active anthraquinone analogs from the fungus Eurotium sp.
Abstract
Four known anthraquinones: Physcion, fluoroglaucin, catenarin and alaternin as well as a cyclic dipeptide with a triprenylated indole moiety, echinulin were purified from acetone extract of the mycelial mats of the fungus Eurotium sp. isolated from the leaves of the mangrove plant Porteresia coarctata (Roxb.). These compounds have previously been reported as fungal / angiosperm metabolites exhibiting anti-bacterial, anti-oxidant and cytotoxic properties. The structures of these compounds were finalized from their spectral data including 2D-NMR (COSY, HMQC and HMBC) studies, which also helped in the assignment of their proton and carbon signals.
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