Some New Bis-(1,2,4-Triazole) Compounds: Synthesis, Characterization and Urease Enzyme Inhibition

In this study, thiosemicarbazide derivatives (2a-c) were obtained from the reaction of acetohydrazide derivative 1,2,4-triazole compound (1) with methyl isothiocyanate, phenyl isothiocyanate, and 4-methylphenyl isothiocyanate compounds, respectively. Then, by intramolecular cyclization of 2a-c compounds, bis-(1,2,4-triazole) compounds (3a-c) were synthesized. The synthesized compounds' chemical structures were verified using FT-IR, 1H-NMR, and 13C-NMR spectroscopic methods. In addition, the urease enzyme inhibition of the synthesized compounds was evaluated using the Weatherburn method in vitro. All newly synthesized compounds showed urease enzyme inhibition in the range of 15.00 ± 0.10 to 16.00 ± 0.25 IC50 (µg/mL) compared to standard thiourea (IC50 = 15.75 ± 0.15 µg/mL).