Synthesis, and Characterization and In-Silico Analysis Against SARS CoV-2 of Novel Benzimidazolium Salts

Abstract

N-heterocyclic carbene molecules are often used as the main scaffold in pharmaceutical chemistry, and one of the most important of these is benzimidazoles. Severe Acute Respiratory Syndrome Coronavirus Disease-2 is the cause of the ongoing pandemic, and a drug should be developed against this virus. Scientists have been investigated the antiviral effects of many not only known molecules but also new molecules. In this study, reactivity and anti-coronavirus disease properties of new benzimidazole derivative molecules were investigated by theoretical methods. Three new benzimidazole derivative molecules were synthesized and fully characterized by FT-IR, 1H NMR and, 13C{1H} NMR spectroscopies for this purpose. Density Functional Theory-based calculation methods were used for optimization and frontier orbitals analysis. Also, the interactions of the molecules were evaluated with coronavirus disease main protease, and severe acute respiratory syndrome coronavirus main peptidase and the results were compared with the results of well-known anti-viral drugs by molecular docking methods. According to the results, 1-allyl-3-(3-chlorobenzyl-5,6-dimethylbenzimidazolium chloride represent the best result against both main protease and main peptidase enzyme with -6.36 kcal/mol and -8.87 kcal/mol, respectively. Additionally, three of the molecules were give better binding results than the well-known anti-viral drugs.

Synthesis, Characterization, and Molecular Docking Analysis of A Novel NHC Salt and Its Palladium-PEPPSI Complex

“…It is possible to have an idea about the stability of the molecules with DFT-based calculation methods (Serdaroğlu, 2002). In addition, it is also possible to acquire knowledge in several topics such as the bioactivities and inhibition capacities of molecules by using calculation methods such as molecular docking (Ata et al, 2022;Türker et al, 2022;Üstün & Şahin, 2022). These docking data provide foresight about the synthesis of more active molecules as well as provide data about the activity mechanisms of the molecules (Umare et al, 2022;Zhou et al, 2022).…”