Optically Active Antifungal Azoles. III. Synthesis and Antifungal Activity of Sulfide and Sulfonamide Derivatives of (2R,3R)-2-(2,4-Difluorophenyl)-3-mercapto-1- (lH-1,2,4-triazol-1-yl)-2-butanol.

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Abstract
In an effort to find potent antifungal agents, optically active sulfur-containing triazole derivatives, sulfides (3) and sulfonamides (4), were prepared and evaluated for antifungal activity against Candida albicans in vitro and in vivo. The sulfides (3) were prepared by the reaction of (2R,3R)-2-(2,4-difluorophenyl)-3-mercapto-1-(1H-1,2,4-triazol-1-yl )-2-butanol (1) with various heteroarylmethyl chlorides in the presence of sodium methoxide. The sulfonamides (4) were synthesized starting from the disulfide (15) in three steps including oxidation of the corresponding sulfenamides (17). Some of the sulfur-containing triazole derivatives (3, 4) showed strong protective effects against candidosis in mice.

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