TAILIEUCHUNG - Structure-based design of functionalized 2-substituted and 1,2- disubstituted benzimidazole derivatives and their in vitro antibacterial efficacy

The aim of this present study was to synthesize 2-substituted and 1,2-disubstituted benzimidazole derivatives to investigate their antibacterial diversity for possible future drug design. The structurebased design of precursors 2-(1H-benzimidazol-2-yl)aniline 1, 2-(3,5-dinitro phenyl)-1Hbenzimidazole 3 and 2-benzyl-1H-benzimidazole 5 were achieved by the condensation reaction of ophenylenediamine with anthranilic acid, 3,5-dinitrophenylbenzoic acid, and phenylacetic acid, respectively. The precursors 1, 3 and 5, upon reaction with six different electrophile-releasing agents, furnished the corresponding 2-substituted benzimidazole, 2a-f and 1,2-disubstituted benzimidazole derivatives 4a-f and 6a-f, respectively. The structural identity of the targeted compounds was authenticated by elemental analytical data and spectral information from FT-IR, UV, 1 H, and 13C NMR. The outcome of the findings from the in vitro screening unveiled 2-benzyl-1-(phenylsulfonyl)-1H-benzimidazole 6b as the most active derivative with lowest MIC value of mg/mL. | Structure-based design of functionalized 2-substituted and 1,2- disubstituted benzimidazole derivatives and their in vitro antibacterial efficacy

• Hoá học
• Activity index
• Structure based design
• Functionalized 2 substituted
• Disubstituted benzimidazole derivatives
• Their in vitro antibacterial efficacy
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