Synthesis and Biological Activity of Ethyl 2-[8-Arylmethylidenehydrazino-3-Methyl-7-(1-Oxothietan-3-YL)Xanth-1-YL]Acetates

Ethyl 2-[8-Arylmethylidenehydrazino-3-methyl-7-(1-oxothietan-3-yl)xanth-1-yl]acetates (IV) were synthesized via reactions of ethyl 2-[8-hydrazino-3-methyl-7-(1-oxothietan-3-yl)xanth-1-yl]acetic acid (III) with various benzaldehydes and acetophenones. The structures of the compounds were elucidated using IR and NMR spectroscopy and elemental analysis. The antiplatelet, anticoagulation, antioxidant, and anti-inflammatory activities were assessedin vitroand in laboratory animals to identify promising compounds exhibiting antiplatelet (hydrazoneIVd) and antioxidant properties (hydrazoneIVb). BothIVbandIVdaccording toin silicocalculations were characterized by the absence of toxic risks (mutagenicity, oncogenicity, reproductive toxicity, local irritation) and had acceptable topological polar surface area so that they were promising.