Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100050, China.
College of Pharmacy, Southwest Minzu University, Chengdu, 610041, China.
Eur J Med Chem. 2019 Mar 1;165:11-17. doi: 10.1016/j.ejmech.2018.12.071. Epub 2018 Dec 28.
A series of reduced lipophilic N-benzylic imidazo[1,2-a]pyridine carboxamides (IPAs) with various side chains were designed and synthesized as new anti-TB agents in this work. Five derivatives A2, A3, A4, B1 and B9 exhibit excellent in vitro activity (MIC: < 0.035 μM) against the drug susceptive Mycobacterium tuberculosis H37Rv strain and two clinically isolated multidrug-resistant strains, and acceptable PK properties. Compound B1 bearing a cyclohexylmethyl piperazine moiety, the same side chain of PBTZ169, was found to have obviously greater AUC and C than Q203 and PBTZ169, suggesting its promising potential to be a lead compound for future antitubercular drug discovery.
本工作设计并合成了一系列具有不同侧链的脂溶性降低的 N-苄基咪唑并[1,2-a]吡啶甲酰胺(IPAs),作为新型抗结核药物。衍生物 A2、A3、A4、B1 和 B9 对药敏结核分枝杆菌 H37Rv 株和两种临床分离的耐多药菌株均表现出优异的体外活性(MIC:<0.035 μM),且具有可接受的 PK 性质。具有环己基甲基哌嗪部分的化合物 B1 与 PBTZ169 的相同侧链,其 AUC 和 C 明显大于 Q203 和 PBTZ169,表明其具有成为未来抗结核药物发现的潜在先导化合物的潜力。