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Alizadeh, Vali; Garcia-Santos, Isabel; Castiñeiras, Alfonso; Mahmoudi, Ghodrat; Safin, Damir A.
Tetrahedron, 08/2024, Letnik: 162Journal Article
A pyrazinamide-benzenesulfonohydrazide hybrid N'-(phenylsulfonyl)pyrazine-2-carbohydrazonamide (1), which was studied by physical measurements and computational tools, is reported. Compound 1 was synthesized using a metallic Na-assisted interaction of 2-cyanopyrazine with benzenesulfonylhydrazine in dry methanol. Our newly developed synthetic approach allowed to obtain the title compound witht the yield of 74%, which is more than twice higher in comparison to the previously reported synthesis using pyrazine-2-carbohydrazonamide and benzenesulfonyl chloride. Molecules of the title compound are linked via N–H⋯O, C–H⋯Ph, S=O⋯2-pyrazine and π⋯π interactions. As it was found by the Hirshfeld surface analysis, molecules of 1 interact through H⋯X (X = H, C, N and O) contacts. Electronic properties of 1 were revealed using the Density Functional Theory (DFT) computations. 1 was expected to be a fourth-class toxicity, and it does not penetrate the blood-brain barrier, while can potentially be absorbed by the gastrointestinal tract. It was predicted that compound 1, which demonstrated the strongest activity against PLpro, Nsp3_range 207–379 MES and Nsp16_SAM site, are of interest to suppress activity of the SARS-CoV-2 proteins. Although the Ki value is slightly higher, the ligand efficiency scores for complex PLpro–1 were found to be characteristic for a Hit. We report on a novel pyrazinamide-benzenesulfonohydrazide hybrid N'-(phenylsulfonyl)pyrazine-2-carbohydrazonamide (1), which was studied by physical measurements and computational tools. Display omitted •N'-(phenylsulfonyl)pyrazine-2-carbohydrazonamide (1) is reported.•Crystal structure of 1 was studied in detail.•Electronic properties of 1 were revealed using the DFT computations.•1 was probed in silico as a potential inhibitor of the SARS-CoV-2 proteins.
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