Exploring the Antitubercular, Antimicrobial Potency, ADME-T Calculations and Docking Studies of 1,2,4-Triazole-Bearing Benzimidazoles
Abstract
We report the synthesis and assessment of novel benzimidazole-triazole scaffolds (4a-4j) as antimicrobial/antitubercular medicines. Two-pot condensation processes were used to synthesize the target compounds. Spectroscopic techniques such as mass spectrometry and nuclear magnetic resonance (1H/13C) spectroscopy were used to characterize the synthesized molecules. The remarkable in vitro activity of compounds 4d and 4h (MICs 2.65 ± 1.10 and 2.57 ± 0.34 µM) is comparable activity to conventional drug Streptomycin (MIC = 2.90 ± 0.47 µM), indicates that these are promising new class of anti-tubercular medicines. Among the tested molecules, 4h and 4i exhibited exceptional antibacterial activity with minimum inhibitory concentrations of 3.15 ± 0.23 and 4.81 ± 0.18 µM against the Bacillus cereus, when compared to Moxifloxacin (MIC = 3.52±0.60 µM). Antifungal profiles showed that compounds 4d and 4i had better antifungal inhibitory potency against Fusarium oxysporum with MIC values of 4.91 ± 1.51 and 3.68 ± 0.12 µM, respectively. Solid binding affinities (-6.85 to -9.26 kcal/mol) with the Mycobacterium TB DprE1 (PDB code: 4FDN) and methicillin-resistant Staphylococcus aureus (PDB ID: 1MWR) through important active sites of H-bond and hydrophobic interaction residues are shown by the in silico molecular docking studies, which offer solid support for their mode of action.
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