Determination of in vitro antifungal activity of dihydroisoxazole dimethanol compound against dermatophytes obtained from clinical isolates and design of some new dihydroisoxazole dimethanol compounds

Abstract

In this study, the in vitro antifungal activity of (3-(4-chlorophenyl)-4,5-dihydroisoxazole-4,5-diyl) dimethanol compound (1) was investigated against two pathogenic fungi species (Trichophyton mentagrophytes and Microsporum canis) and important results were obtained. The difficulty of treating fungal diseases induced us to assess the antifungal properties of dihydroisoxazole dimethanol compound. The broth microdilution method was used to determine the minimum inhibitory concentration (MIC). The compound (1) showed an antifungal effect with MIC=12.5 µg ml-1 on M. canis and MIC=50 µg ml-1 on T. mentagrophytes, respectively. To prepare potentially more effective antifungal agents, new dihydroisoxazole derivatives (2-32) were theoretically designed. The geometrical optimization of all compounds (1-32) was performed using the semi-empirical AM-1 level. Some structural parameters of the optimized compounds (1-32) were also calculated.