Synthesis and Structure-Activity Relationships of a New Class of Oxadiazoles Targeting DprE1 as Antitubercular Agents.

ACS Med Chem Lett

Tuberculosis Research Section, Laboratory of Clinical Immunology and Microbiology, National Institute of Allergy and Infectious Diseases (NIAID), National Institutes of Health (NIH), Bethesda, Maryland 20892, United States.

Published: September 2023

AI Article Synopsis

  • The study addresses the urgent issue of drug-resistant tuberculosis, emphasizing the necessity for new drug candidates to improve treatment options.
  • Researchers discovered a potent compound, (4-benzylpiperidin-1-yl)(1-(5-phenyl-1,3,4-oxadiazol-2-yl)piperidin-4-yl)methanone, through high-throughput screening, which showed effectiveness against both drug-resistant and drug-susceptible strains of TB.
  • Analysis of resistant mutant strains identified mutations in the DprE1 gene, suggesting a new avenue for drug development and highlighting the potential of the novel oxadiazole structure as a valuable tool in TB treatment.

Article Abstract

The continuing prevalence of drug-resistant tuberculosis threatens global TB control programs, highlighting the need to discover new drug candidates to feed the drug development pipeline. In this study, we describe a high-throughput screening hit (4-benzylpiperidin-1-yl)(1-(5-phenyl-1,3,4-oxadiazol-2-yl)piperidin-4-yl)methanone () as a potent antitubercular agent. Structure-activity guided synthesis led to the discovery of several analogs with high potency. was found to have promising potency against many drug-resistant strains, as well as drug-susceptible clinical isolates. It also showed cidality against growing in host macrophages. Whole genome sequencing of genomic DNA from resistant mutants raised to revealed mutations in decaprenylphosphoryl-β-d-ribose 2'-oxidase (DprE1). This novel oxadiazole scaffold expands the set of chemical tools for targeting a well-validated pathway to treat tuberculosis.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10510505PMC
http://dx.doi.org/10.1021/acsmedchemlett.3c00295DOI Listing

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