Abstract
Based on the data obtained by molecular modeling of the non-covalent interaction of non-symmetric N-benzylbispidin-9-ol amides with the active site of the main protease 3CLpro of the SARS-CoV-2 virus, a series of compounds was synthesized, and their inhibitory activity against 3CLpro was studied and compared with that of the known inhibitor ML188 (IC50 = 1.56±0.55 µmol L-1). It was found that only compound 1g containing the 1,4-dihydroindeno[1,2-c]pyrazole fragment showed moderate activity (IC50 = 100±5.7µmol L-1) and was characterized by the highest calculated binding energy among the studied bispidine derivatives according to molecular docking data.
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