Benzimidazole-based compounds kill Mycobacterium tuberculosis Academic Article uri icon


MeSH Major

  • Antitubercular Agents
  • Benzimidazoles
  • Mycobacterium tuberculosis


  • Tuberculosis remains one of the deadliest infectious diseases, killing 1.4 million people annually and showing a rapid increase in cases resistant to multiple drugs. New antibiotics against tuberculosis are urgently needed. Here we describe the design, synthesis and structure-activity relationships of a series of benzimidazole-based compounds with activity against Mycobacterium tuberculosis (Mtb) in a replicating state, a physiologically-induced non-replicating state, or both. Compounds 49, 67, 68, 69, 70, and 72, which shared a 5-nitrofuranyl moiety, exhibited high potency and acceptable selectivity indices (SI). As illustrated by compound 70 (MIC90 < 0.049 μg/mL, SI > 512), the 5-nitrofuranyl group was compatible with minimal cytotoxicity and good intra-macrophage killing, although it lacked non-replicating activity when assessed by CFU assays. Compound 70 had low mutagenic potential by SOS Chromotest assay, making this class of compounds good candidates for further evaluation and target identification.

publication date

  • March 21, 2014



  • Academic Article



  • eng

Digital Object Identifier (DOI)

  • 10.1016/j.ejmech.2014.01.039

PubMed ID

  • 24556148

Additional Document Info

start page

  • 336

end page

  • 53


  • 75