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Cytotoxicity and Antimycobacterial Properties of Pyrrolo[1,2-]quinoline Derivatives: Molecular Target Identification and Molecular Docking Studies

Abstract

A series of ethyl 1-(substituted benzoyl)-5-methylpyrrolo[1,2-]quinoline-3-carboxylates - and dimethyl 1-(substituted benzoyl)-5-methylpyrrolo[1,2-]quinoline-2,3-dicarboxylates - have been synthesized and evaluated for their anti-tubercular (TB) activities against H37Rv (American Type Culture Collection (ATCC) strain 25177) and multidrug-resistant (MDR) strains of by resazurin microplate assay (REMA). Molecular target identification for these compounds was also carried out by a computational approach. All test compounds exhibited anti-tuberculosis (TB) activity in the range of 8-128 µg/mL against H37Rv. The test compound dimethyl-1-(4-fluorobenzoyl)-5-methylpyrrolo[1,2-]quinoline-2,3-dicarboxylate emerged as the most promising anti-TB agent against H37Rv and multidrug-resistant strains of at 8 and 16 µg/mL, respectively. In silico evaluation of pharmacokinetic properties indicated overall drug-likeness for most of the compounds. Docking studies were also carried out to investigate the binding affinities as well as interactions of these compounds with the target proteins.

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