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New Chromane-Based Derivatives as Inhibitors of Mycobacterium tuberculosis Salicylate Synthase (MbtI): Preliminary Biological Evaluation and Molecular Modeling Studies

机译:新的基于铬烷的衍生物作为结核分枝杆菌水杨酸合酶(MbtI)的抑制剂:初步生物学评估和分子模型研究

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摘要

Tuberculosis is the leading cause of death from a single infectious agent worldwide; therefore, the need for new antitubercular drugs is desperate. The recently validated target salicylate synthase MbtI is the first enzyme involved in the biosynthesis of mycobactins, compounds able to chelate iron, an essential cofactor for the survival of Mycobacterium tuberculosis in the host. Here, we report on the synthesis and biological evaluation of chromane-based compounds as new potential inhibitors of MbtI. Our approach successfully allowed the identification of a novel lead compound (>1), endowed with a promising activity against this enzyme (IC50 = 55 μM). Molecular modeling studies were performed in order to evaluate the binding mode of >1 and rationalize the preliminary structure-activity relationships, thus providing crucial information to carry out further optimization studies.
机译:结核病是全世界单一传染病致死的主要原因。因此,迫切需要新的抗结核药物。最近验证的目标水杨酸酯合成酶MbtI是参与分枝杆菌素生物合成的第一种酶,分枝杆菌素是能够螯合铁的化合物,铁是宿主结核分枝杆菌在宿主中生存的重要辅助因子。在这里,我们报告基于苯并二氢吡喃基化合物作为MbtI的新型潜在抑制剂的合成和生物学评估。我们的方法成功地鉴定了一种新型铅化合物(> 1 ),该化合物具有针对该酶的有前途的活性(IC50 = 55μM)。为了评估> 1 的结合模式并合理化初步的构效关系,进行了分子建模研究,从而为进一步的优化研究提供了重要的信息。

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