Abstract
The present work describes the synthesis and antifungal evaluation of new 5-arylidene-(Z)-2-dimethylamino-1,3-thiazol-4-ones 4a-f, obtained by the reaction of aromatic aldehydes 1 and rhodanine 2 followed by treatment with DMF. All compounds were tested against a panel of yeasts, hialohyphomycetes, and dermatophytes using the microbroth dilution method. Compounds 4a and 4c showed antifungal activity, with compound 4a being the most active one. Compound 4a demonstrated to be fungicidal rather than fungistatic and selective activity against Cryptococcus neoformans and dermatophytes. MIC(100), MIC(80), and MIC(50) of 4a were determined against a panel of clinical isolates of C. neoformans showing ranges of MICs between 2 and 16 microg/mL.
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