Synthesis of Ethyl-2-Amino-1-(hetarylamido)-4-oxo-5-(2-oxo-2-phenylethylidene)-4,5-Dihydro-1H-Pyrrole-3-Carboxylates, the Study of their Antioxidant Activity, and the Ouantum Chemical Estimation of their Electronic Parameters

Abstract

Ethyl-2-amino-1-(hetarylamido)-4-oxo-5-(2-oxo-2-phenylethylidene)-4,5-dihydro-1H-pyrrole-3-carboxylates are synthesized, their antiradical and antioxidant activities are studied, and the quantum chemical calculations are performed. The nitrogen atom position in the pyridine moiety of the derivatives is found to change the toxicity of synthesized compounds and to affect the ability to bind free radicals. The results can facilitate the further determination of the structure – activity relationship in the considered types of the biological activity.