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Nowadays, control of viral diseases becomes especially relevant, considering spreading of influenza A (subtype H1N1) in this season and appearance of new coronavirus SARS-CoV-2, which caused their epidemic spreading in the world. This is why development and introduction of new highly effective antiviral drugs are a relevant direction of pharmaceutical chemistry. The aim of research is to synthesize the derivatives of (4,6-bis-amino[1,3,5]triazin-2-yl-sulphanyl)-Naryl-acetamide and to study the antiviral activity for FluA (H1N1) virus California/07/2009 at primary pharmacological screening stage. The investigated compounds – (4,6-bis-amino[1,3,5]triazin-2-yl-sulphanyl)-N-aryl-acetamide derivatives, were synthesized on the basis of 4,6-bis-ethylamino[1, 3,5]triazin-2-tiol. The antiviral activity of (4,6-bis-amino[1,3,5]triazin-2-yl-sulphanyl)-N-(2,4,6-trichlorphenyl)-acetamide against the virus FluA (H1N1) California/07/2009 was evaluated on MDCK cell culture test in vitro. It has been shown that the test substance exhibits high antiviral activity against the influenza A virus H1N1 California/ 07/2009 with effective concentration of EC50 0,6 μg/ml and the selectivity index SI > 170 (for Ribavirin SI > 160 and Amizona SI > 2,1). The data obtained substantiate the expediency of further study of derivatives of (4,6-diamino[1,3,5] triazine-2-yl-sulphanyl)-N-aryl-acetamide as potential antiviral agents.

Synthesis and antiviral activity of 4,6-bis-ethylamino[1,3,5]triazine derivatives for Flu A (H1N1) virus California/07/2009