Synthesis, Antimicrobial Activity and Molecular Docking of Pyrazole Bearing the Benzodiazepine Moiety

Abstract

Antibacterial assayMueller Hinton Broth dilution method (Becton Dickinson, USA) was used for the antibacterial assay of synthesized compounds. The strains used for antimicrobial activity of newly synthesized compounds were procured from the IMTECH, Chandigarh. The compounds (2a-t) were screened for their antibacterial activity in triplicate sets against these bacteria at different concentrations of 1000, 500, 250, and 200 μg/mL. The drugs which were found to be active in primary analysis were further diluted and evaluated. 10 μg/mL suspensions were further inoculated on appropriate media and the growth was noted after one or two days. Minimum inhibitory concentration is the lowest concentration, which showed no growth of microbes after spot subculture for each drug. The test mixture should contain 10 8 cells/mL. In this study, Ciprofloxacin was the standard drug for evaluating the antibacterial activity. Antifungal assayMueller Hinton Broth dilution method (Becton Dickinson, USA) was used for the antifungal assay of synthesized compounds. The strains used for antimicrobial activity of newly synthesized compounds were procured from the IMTECH, Chandigarh. The newly prepared compounds (2a-t) were screened for their antifungal activity as primary screens in six sets against C. albicans, A. niger, and A. clavatus at various concentrations of 1000, 500, and 250 μg/mL. The primary active compounds were similarly diluted to obtain 200, 125, 100, 62.5, 50, 25, and 12.5 μg/mL concentrations for secondary screening to test in a second set of dilutions against all fungi. The fungal activity of each compound was compared with Nystatin as a standard drug, which showed 100, 100, and 100 μg/mL MIC against C. albicans, A. niger and A. clavatus, respectively. Molecular dockingThe crystal structures of the crucial microbial target DNA gyrase subunit b was retrieved from the Protein Data Bank (RCSB) 1 (PDB ID:1KZN) and refined using the Protein Preparation Wizard.

Assessment of Biological Activities and Genomic Changes on Microorganisms, Wheat, and Wilding Arise from Poly(pyrazole)

“…This site consists of ‐GCG‐ of the dodecamer [19] . The previous studies have shown that pyrazole derivatives could bind a protein or an enzyme as a target molecule with a range of −10.5 kcal/mol, [26] −9.486 kcal/mol, [27] −8.298 kcal/mol, [28] −6.00 kcal/mol [29] . It seems all the selected modes of poly(PDPPD) have shown a binding affinity in a range similar to previous studies binding area.…”

Synthesis, Antifungal Ergosterol Inhibition, Antibiofilm Activities, and Molecular Docking on β-Tubulin and Sterol 14-Alpha Demethylase along with DFT-Based Quantum Mechanical Calculation of Pyrazole Containing Fused Pyridine–Pyrimidine Derivatives

“…(3-(1,3-Diphenyl-1 H -pyrazol-4-yl)-1-arylprop-2-en-1-ones ( 3a – 3o ) were prepared according to the method as per the literature method. 39 …”

Synthetic aspects of 1,4- and 1,5-benzodiazepines usingo-phenylenediamine: a study of past quinquennial

“…Using OPD(OPD) and a,b-unsaturated ketones. Desai et al 54 developed an efficient methodology for the synthesis of pyrazole-bearing BZDs (3) using OPD (1) and 3-(1,3-diphenyl-1H-pyrazol-4-yl)-1-phenylprop-2-en-1-ones (2) with piperidine and acetic acid as catalysts. The desired products were obtained in 8-10 h using a DMF solvent under reux conditions.…”