Arylazolyl(azinyl)thioacetanilide. Part 9#: Synthesis and Biological Investigation of Thiazolylthioacetamides Derivatives as a Novel Class of Potential Antiviral Agents

다국어 초록 (Multilingual Abstract)

In continuation of our endeavor to develop new, potent, selective and less toxic antiviral agents, a novel series of 2-(2-amino/chloro-4-(2,4-dibromophenyl) thiazol-5-ylthio)acetamide derivatives was synthesized via an expeditious route and evaluated for their anti-HIV activities against wild-type virus and clinically relevant mutant strains, and for their anti-influenza virus activities against influenza A (H1N1 and H3N2) and influenza B in cellular assays. The selected active compounds were also assayed for their enzymic inhibitory activities. The results showed that some 2-chloro substituted thiazolylthioacetamide derivatives possessed potent activity against wild type HIV-1 and several key mutant strains (E138K, K103N, L100I) of HIV-1 in MT-4 cells with EC50 values in micromolar range. Two 2-amino substituted thiazole derivatives 8a7 and 8a8 displayed significant potency against influenza A/H1N1 in MDCK cells with EC50 values much lower than that of oseltamivir carboxylate, ribavirin, amantadine and rimantadine. Though the mechanism of actions is still unclear, these novel thiazolylthioacetamides might serve as original leads for further pharmacological investigations as potential therapeutic agents against HIV-1 or influenza virus.

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