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J Med Chem. 2014 Feb 27;57(4):1276-88. doi: 10.1021/jm401326j. Epub 2014 Feb 5.

Encoded library technology as a source of hits for the discovery and lead optimization of a potent and selective class of bactericidal direct inhibitors of Mycobacterium tuberculosis InhA.

Author information

1
ELT Boston, Platform Technology & Science, GlaxoSmithKline , Waltham, Massachusetts 02451, United States.

Abstract

Tuberculosis (TB) is one of the world's oldest and deadliest diseases, killing a person every 20 s. InhA, the enoyl-ACP reductase from Mycobacterium tuberculosis, is the target of the frontline antitubercular drug isoniazid (INH). Compounds that directly target InhA and do not require activation by mycobacterial catalase peroxidase KatG are promising candidates for treating infections caused by INH resistant strains. The application of the encoded library technology (ELT) to the discovery of direct InhA inhibitors yielded compound 7 endowed with good enzymatic potency but with low antitubercular potency. This work reports the hit identification, the selected strategy for potency optimization, the structure-activity relationships of a hundred analogues synthesized, and the results of the in vivo efficacy studies performed with the lead compound 65.

PMID:
24450589
DOI:
10.1021/jm401326j
[Indexed for MEDLINE]

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