(E)-Substituted-N-((1,3-diphenyl-1H-pyrazol-4-yl)methylene)benzeneamine: synthesis, characterization, antibacterial, and MTT assessment

Abstract

To find out some novel antimicrobial chemotherapeutic agents, fifteen (E)-Substituted-N-(1,3-diphenyl-1H-pyrazol-4-yl) methylene)benzeneamine derivative (1-15) were synthesized. Structural elucidation of the prepared derivatives (1-15) was achieved by FTIR, NMR ( 1 H or 13 C), Mass spectroscopy and elemental analysis. After structural analyses the derivatives were subjected for biological assessment to estimate the antimicrobial therapeutic potential as well as the percent viability of the cells by disk diffusion methods and MTT assay. All the experiments were performed in triplicate; Ciprofloxacin and DMSO were used as positive and negative control. The results exhibited that the compounds 3, 4, 7-14 were found to exhibit significant antimicrobial therapeutic effect against all microorganisms, while some compounds of the series like 5, 6, 15, possessed moderate and compound 1 was found less significant potential. The percent viability of the cells were observed in the range 91-96% at lowest concentration 3.125 µM while 70-75% at the highest 100 µM.