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- Title
Synthesis and Evaluation of New 1,3,4-Thiadiazole Derivatives as Potent Antifungal Agents.
- Authors
Karaburun, Ahmet Çağrı; Acar Çevik, Ulviye; Osmaniye, Derya; Sağlık, Begüm Nurpelin; Kaya Çavuşoğlu, Betül; Levent, Serkan; Özkay, Yusuf; Koparal, Ali Savaş; Behçet, Mustafa; Kaplancıklı, Zafer Asım
- Abstract
With the goal of obtaining a novel bioactive compound with significant antifungal activity, a series of 1,3,4-thiadiazole derivatives (3a–3l) were synthesized and characterized. Due to thione-thiol tautomerism in the intermediate compound 2, type of substitution reaction in the final step was determined by two-dimensional (2D) NMR. In vitro antifungal activity of the synthesized compounds was evaluated against eight Candida species. The active compounds 3k and 3l displayed very notable antifungal effects. The probable mechanisms of action of active compounds were investigated using an ergosterol quantification assay. Docking studies on 14-α-sterol demethylase enzyme were also performed to investigate the inhibition potency of compounds on ergosterol biosynthesis. Theoretical absorption, distribution, metabolism, and excretion (ADME) predictions were calculated to seek their drug likeness of final compounds. The results of the antifungal activity test, ergosterol biosynthesis assay, docking study, and ADME predictions indicated that the synthesized compounds are potential antifungal agents, which inhibit ergosterol biosynthesis probably interacting with the fungal 14-α-sterol demethylase.
- Subjects
THIADIAZOLES; BIOACTIVE compounds; ANTIFUNGAL agents; THIOL synthesis; CANDIDIASIS treatment; MOLECULAR docking; NUCLEAR magnetic resonance
- Publication
Molecules, 2018, Vol 23, Issue 12, p3129
- ISSN
1420-3049
- Publication type
Article
- DOI
10.3390/molecules23123129