Abstract
The preparation of 1,3,2-benzodithiazole S-oxide analogs exhibiting in vitro antifungal activity against several strains of Candida is described. For the preparation of derivatives bearing aromatic substituents, a novel electrophilic aromatic thiolation reaction was utilized which produced substituted aromatic 1,2-dithiol intermediates. The reactions of nucleophiles with the parent heterocyclic system have led to an efficient transamidation process which allows for the direct production of these analogs. The S-oxide bond exhibits poor stereochemical stability and has been found to epimerize under ambient conditions. The structure-activity data report that a side chain of greater than 10 carbons effects a loss in activity as does the placement of polar groups in this chain.
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