Design, synthesis, and biological evaluation of novel arylcarboxamide derivatives as anti-tubercular agents
作者:Shahinda S. R. Alsayed、Shichun Lun、Giuseppe Luna、Chau Chun Beh、Alan D. Payne、Neil Foster、William R. Bishai、Hendra Gunosewoyo
DOI:10.1039/c9ra10663d
日期:——
activity against multidrug-resistant (MDR) and extensively drug-resistant (XDR) M. tb strains. It is worth noting that the two most active compounds 13c and 13d also exhibited the highest selective activity towards DS, MDR and XDR M. tb strains over mammalian cells [IC50 (Vero cells) ≥ 227 μM], indicating their potential lack of cytotoxicity. The four compounds were docked into the MmpL3 active site and
我们小组之前曾报道过几种表现出强效抗结核活性的吲哚甲酰胺。在这里,我们基于我们之前报道的同源模型和最近发表的分枝杆菌膜蛋白大 3 (MmpL3) 的晶体结构合理地设计了几种芳基甲酰胺。许多类似物对药物敏感 (DS)结核分枝杆菌( M. tb ) 菌株表现出相当大的抗结核活性。萘酰胺衍生物13c和13d是我们研究中最活跃的化合物(MIC:分别为 6.55、7.11 μM),显示出与一线抗结核(抗 TB)药物乙胺丁醇(MIC:4.89 μM)相当的效力。除了萘酰胺衍生物外,我们还确定了喹诺酮-2-甲酰胺和 4-芳基噻唑-2-甲酰胺作为潜在的 MmpL3 抑制剂,其中化合物8i和18b的 MIC 值分别为 9.97 和 9.82 μM。所有四种化合物都保留了对多重耐药 (MDR) 和广泛耐药 (XDR)结核分枝杆菌菌株的高活性。值得注意的是,两种活性最高的化合物13c和13d对 DS、MDR 和