Key points are not available for this paper at this time.
A set of nine 2,7-dimethylimidazo1,2-apyridine-3-carboxamides and one 2,6-dimethylimidazo1,2-apyrimidine-3-carboxamide were synthesized. The compounds were evaluated for their in vitro anti-tuberculosis activity versus replicating, non-replicating, multi- and extensive drug resistant Mtb strains. The MIC(90) values of seven of these agents were ≤ 1 μM against the various tuberculosis strains tested. A representative compound of this class (1) was screened against seven non-tubercular strains as well as other non-mycobacteria organisms and demonstrated remarkable microbe selectivity. A transcriptional profiling experiment of Mtb treated with compound 1 was performed to give a preliminary indication of the mode of action. Lastly, the in vivo ADME properties of compounds 1, 3, 4, and 6 were assessed. The 2,7-dimethylimidazo1,2-apyridine-3-carboxamides are a drug-like and synthetically accessible class of anti-TB agents that have excellent selective potency against multi- and extensive drug resistant TB and encouraging pharmacokinetics.
Moraski et al. (Wed,) studied this question.