Recent advances in the research of heterocyclic compounds as antitubercular agents.

Department of Medicinal Chemistry, Key Laboratory of Chemical Biology (Ministry of Education), School of Pharmaceutical Sciences, Shandong University, 44 West Culture Road, Jinan 250012, PR China.

ChemMedChem 2012 Dec

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Tuberculosis (TB) is a major health problem, with approximately one-third of the world's population infected with Mycobacterium tuberculosis, eight million people in the active disease state, and two million dying annually. Furthermore, the prevalence of TB/HIV co-infection, and the emergence of multidrug-resistant tuberculosis (MDR-TB) and extensively drug-resistant tuberculosis (XDR-TB) have further aggravated the spread of this disease and thus mortality by it. There is an urgent need for novel antitubercular agents with improved properties, such as lower toxicity, shortened duration of therapy, rapid bactericidal action, and enhanced activity against MDR strains. Fortunately, a number of new potential antitubercular candidate drugs with heterocyclic rings, which are most likely to be effective against resistant strains, have entered clinical trials in recent years. This review highlights recent advances in the research of novel heterocyclic compounds, with particular focus on their antimycobacterial activity, mechanisms of action, toxicity, and structure-activity relationships (SARs). Copyright © 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.