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Abstract
Aim. Synthesis, structure determination, in vivo study of anti-inflammatory (anti-exudative) and ulcerogenic activity, estimation of an impact of novel pyrazolin-5-one bearing thiazolidin-4-ones on liver function.Methods. Organic synthesis: multicomponent reactions (MCRs), [2+3]-cycloaddition reactions. Spectral methods: IR, LC-MS, 1H NMR. Biological methods: study of anti-cancer activity (NCI NIH, USA) protocol for 3-cell line panel); carrageenin-induced inflammatory paw edema model of white rats, biochemical laboratory tests (ALT, AST, ALP, γ-GGT levels determination); evaluation of ulcerogenic action. Results. The series of novel C-5 and N-3 substituted 2-[(1,5-dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazol-4-yl) amino/imino]thiazolidin-4-ones had been synthesized using MCR and [2+3]-cycloaddition reactions as potential biologically active compounds. The results of screening anti-exudativeactivity revealed that the tested derivatives possess promising anti-inflammatory effect. The SARs were formed and possible mechanisms of their action were discussed. Conclusions. The results presented in paper suggest that the design and synthesis of new pyrazolin-5-on/thiazolidin-4-one hybrids as potential molecules are an attractive area for the search for novel agents with promising pharmacological properties





