Synthesis and in vitro antimycobacterial activity of B-ring modified diaryl ether InhA inhibitors
作者:Christopher W. am Ende、Susan E. Knudson、Nina Liu、James Childs、Todd J. Sullivan、Melissa Boyne、Hua Xu、Yelizaveta Gegina、Dennis L. Knudson、Francis Johnson、Charles A. Peloquin、Richard A. Slayden、Peter J. Tonge
DOI:10.1016/j.bmcl.2008.04.038
日期:2008.5
Previous structure-based design studies resulted in the discovery of alkyl substituted diphenyl ether inhibitors of InhA, the enoyl reductase from Mycobacterium tuberculosis. Compounds such as 5-hexyl-2-phenoxyphenol 19 are nM inhibitors of InhA and inhibit the growth of both sensitive and isoniazid-resistant strains of Mycobacterium tuberculosis with MIC(90) values of 1-2 microg/mL. However, despite
先前基于结构的设计研究发现了 InhA(结核分枝杆菌的烯酰还原酶)的烷基取代二苯醚抑制剂。5-hexyl-2-phenoxyphenol 19 等化合物是 InhA 的 nM 抑制剂,可抑制结核分枝杆菌的敏感菌株和异烟肼耐药菌株的生长,MIC(90) 值为 1-2 微克/毫升。然而,尽管它们具有良好的体外活性,但这些化合物的 ClogP 值超过 5。为了降低化合物的亲脂性,并可能提高化合物的生物利用度,合成了一系列 19 种 B 环类似物,其中含有杂环氮环或具有氨基、硝基、酰胺或哌嗪官能团的苯环。化合物 3c、3e 和 14a 显示出与 19 相当的 MIC(90) 值,