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    Antimicrobial and antiproliferative activity studies of some new quinoline-3-carbaldehyde hydrazone derivatives
    (Academic Press Inc Elsevier Science, 2020) Puskullu, Mustafa Orhan; Celik, Ismail; Erol, Meryem; Fatullayev, Hanifa; Uzunhisarcikli, Ebru; Kuyucuklu, Gulcan
    In this study, a total of 22 piece quinoline-3-carbaldehyde hydrazone derivative compounds were designed and synthesized, 2 of which were not original, their antimicrobial activities were determined with microdilution method and their in vitro cytotoxic effect was investigated in MCF-7 and A549 cells by MTT assay. When the activity results are examined, although the antimicrobial effects of quinoline derivatives, in general, are weaker than standard drugs; 3q5 and 3q6 against MRSA showed promising activity with MIC:16 mu g/ml compared to reference drugs. Compounds generally showed weaker cytotoxic activity on the A549 and MCF-7 cell line. 3q12, 3q17 and 3q22 at 100 mu M reduced cell viability to 59.28%, 76.24% and 72.92% on A549 cells, respectively. Compound 3q6, one of the most effective compounds against MRSA, formed a 2.10 angstrom long hydrogen bond between the quinoline nitrogen and ARG132 in the DNA topoisomerase IV active site (PDB: 3FV5). Theoretical ADME profiles of all compounds comply with Lipinski and other limiting rules. In addition, MEP analysis of 3q6, geometric optimization and molecular reactivity analysis were calculated with the 6-311G (d,p) base set DFT/ B3LYP theory, and Delta E = ELUMO-EHOMO, which is a measure of the stable structure of the molecule, was cal-culated as 0.13377 for 3q6 and had the most stable electronic structure among all compounds.