Design, synthesis and biological evaluation of nitrofuran-1,3,4-oxadiazole hybrids as new antitubercular agents

Bioorg Med Chem. 2022 Jan 1:53:116529. doi: 10.1016/j.bmc.2021.116529. Epub 2021 Nov 25.

Abstract

Three series of novel nitrofuran-1,3,4-oxadiazole hybrids were designed and synthesized as new anti-TB agents. The structure activity relationship study indicated that the linkers and the substituents on the oxadiazole moiety greatly influence the activity, and the substituted benzenes are more favoured than the cycloalkyl or heterocyclic groups. Besides, the optimal compound in series 2 was active against both MTB H37Rv strain and MDR-MTB 16883 clinical isolate and also displayed low cytotoxicity, low inhibition of hERG and good oral PK, indicating its promising potential to be a lead for further structural modifications.

Keywords: Antitubercular activity; Nitrofuran-1,3,4-oxadiazole hybrids; Synthesis.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Antitubercular Agents / chemical synthesis
  • Antitubercular Agents / chemistry
  • Antitubercular Agents / pharmacology*
  • Dose-Response Relationship, Drug
  • Drug Design*
  • Humans
  • Microbial Sensitivity Tests
  • Molecular Structure
  • Mycobacterium tuberculosis / drug effects*
  • Nitrofurans / chemistry
  • Nitrofurans / pharmacology*
  • Oxadiazoles / chemistry
  • Oxadiazoles / pharmacology*
  • Structure-Activity Relationship

Substances

  • Antitubercular Agents
  • Nitrofurans
  • Oxadiazoles
  • 1,3,4-oxadiazole