Pyrazole clubbed triazolo[1,5-a]pyrimidine hybrids as an anti-tubercular agents: Synthesis, in vitro screening and molecular docking study

Bioorg Med Chem. 2015 Dec 15;23(24):7711-6. doi: 10.1016/j.bmc.2015.11.018. Epub 2015 Nov 17.

Abstract

A series of novel pyrazole linked triazolo-pyrimidine hybrids were synthesized and evaluated for their anti-tuberculosis activity against M.tb H37Rv strain. Some of the screened entities rendered promising anti-tb activity (MIC: 0.39μg/mL) and were found non toxic against Vero cells (IC50: ⩾20μg/mL). Further, the docking study against wild type InhA enzyme of Mycobacterium tuberculosis using Glide reproduced the most active inhibitors (J21 and J27) with lowest binding energies and highest Glide XP scores demonstrating efficient binding to the active pocket. Additionally, the enzyme inhibition assay and ADME prediction of the active proved to be an attest to the possibility of developing compound J27 as a potent anti-tubercular lead.

Keywords: ADME; Diaryl pyrazole aldehydes; Enzyme inhibition assay; Glide; Triazolopyrimidine.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Antitubercular Agents / chemistry*
  • Antitubercular Agents / pharmacology*
  • Bacterial Proteins / antagonists & inhibitors
  • Bacterial Proteins / metabolism
  • Chlorocebus aethiops
  • Humans
  • Molecular Docking Simulation
  • Mycobacterium tuberculosis / drug effects*
  • Mycobacterium tuberculosis / enzymology
  • Oxidoreductases / antagonists & inhibitors
  • Oxidoreductases / metabolism
  • Pyrazoles / chemistry*
  • Pyrazoles / pharmacology*
  • Pyrimidines / chemistry*
  • Pyrimidines / pharmacology*
  • Triazoles / chemistry
  • Triazoles / pharmacology
  • Tuberculosis / drug therapy
  • Vero Cells

Substances

  • Antitubercular Agents
  • Bacterial Proteins
  • Pyrazoles
  • Pyrimidines
  • Triazoles
  • pyrazole
  • Oxidoreductases
  • InhA protein, Mycobacterium