Recent Discoveries of Nitrogen-Containing Heterocyclic Compounds as InhA Inhibitors against Mycobacterium tuberculosis: An Overview

It is a formidable challenge to treat tuberculosis as there are increasing cases of multidrugresistant tuberculosis (MDR-TB) and extensively drug-resistant tuberculosis (XDR-TB) cases. Moreover, the emergence of totally drug-resistant tuberculosis (TDR-TB) makes it vital and imperative to develop a new generation of anti-tubercular drugs to have control over resistance. The nitrogencontaining heterocyclic class of compounds is being studied extensively to ascertain their anti-TB potentials. Nitrogen-containing compounds have a broad range of targets; wherein, InhA is the most important one. Hence, the primary focus of this review is to summarize the recent developments in the discovery of nitrogen-containing heterocyclic compounds as InhA inhibitors to combat tuberculosis.