Exploring Nitrogen-Based Novel Compounds: Their Synthesis, Characterization, and Antimicrobial Potency

The medical field is currently facing the challenge of antimicrobial resistance among various bacterial strains. Numerous health organizations have emphasized the need to discover or develop new antimicrobial agents that possess a broad spectrum of action and high efficacy against highly resistant strains of both Gram-positive and Gram-negative bacteria, as well as fungi. Among the notable nitrogen-containing, five-membered heterocycles are 1,2,3-triazoles, which have diverse applications in medicine, supramolecular chemistry, organic synthesis, chemical biology, and industry. This study focuses on the synthesis, characterization, and antimicrobial evaluation of two new compounds: N-(2-aminophenyl)-4-methyl benzenesulfonamide (Compound 1) and 2-((4-methyl-4H-1,2,4-triazol-3-yl)thio)aniline (Compound 2). The synthesis yielded 60-80% of the compounds, and their structures were confirmed using 1H-NMR, 13C-NMR, IR, and HRMS techniques. Antimicrobial testing revealed that Compound 2 exhibited the strongest antibacterial activity, particularly against Klebsiella pneumoniae, with a 23 mm zone of inhibition. Compound 1 showed moderate dual action, especially against Mucor spp., with a 12 mm zone of inhibition. Despite their promising activity, this work provides insights into the structure-activity relationships of these compounds and underscores their potential as lead structures for future antimicrobial research.