Following the interaction of 2-chloro-N-(5-aryl-1,3,4-oxadiazole-2-yl) acetamides 1a-b with ammonium thiocyanate in dry acetone, the 5-unsubstituted 2-imino-4-thiazolidinones 4a-b have been synthesized. Compounds 4a-b were subsequently utilized in Knoevenagel condensation with aromatic aldehydes or isatin derivatives to synthesize the series of 5-arylidene/isatinylidene substituted 2-(1,3,4-oxadiazol-2-yl)imino-4-thiazolidinones 5a-h and 6a-d. The structures of target compounds were confirmed by using 1H NMR spectroscopy and elemental analysis. Evaluation of anti-cancer activity in
vitro for the synthesized compounds was performed following the National Cancer Institute protocol against leukemia, melanoma, lung, colon, CNS, ovarian, renal, prostate, and breast cancer cell lines. As a result, the most active compound 5a, namely 2-[5-(4-chlorophenyl)-[1,3,4]oxadiazol-2-ylimino]-5-(4-methoxybenzylidene)thiazolidin-4-one was found to be a highly efficient anti-tumor candidate with average logGI50 and logTGI values of -5.19 and -4.09, respectively

УДК: 616–093+547.789

As a result of the furfural reaction with diazonium, salts 1a-h the arylfuran-2-carbaldehydes 3a-h were synthesized. In the reaction of Wilgerodt-Kindler, arylfuran-2-carbaldehydes with sulfur and aryl piperazines was prepared 1-aryl-4-[(5-aryl-2-furyl)carbonothioyl]piperazines. The structures of target compounds 5a-l were confirmed by using 1H NMR spectroscopy and elemental analysis. The antimicrobial activity of the synthesized substances was evaluated by the value of the MIC and minimum fungicidal and bactericidal concentration. The findings exhibited that the compounds
possessed moderate antimicrobial potential. In vitro anticancer activity assessment on the full panel