Abstract

Chemical examination of a coral-associated fungus Aspergillus versicolor LZD-44-03 resulted in the isolation of two new compounds with the trivial names of varicuothiols A (1) and B (2) as a unique scaffold. Their structures were determined through extensive spectroscopic analyses in association with the modified Mosher's method and chemical conversion. Both 1 and 2 exhibited significant inhibition against LPS-induced RAW24.7 cell proliferation, in association with the down regulation of nitrite production and cytokines (MCP-1, IL-6, and TNF-α).

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