Pharmaceuticals (Mar 2023)

Antibacterial Properties and Computational Insights of Potent Novel Linezolid-Based Oxazolidinones

  • M. Shaheer Malik,
  • Shaikh Faazil,
  • Meshari A. Alsharif,
  • Qazi Mohammad Sajid Jamal,
  • Jabir H. Al-Fahemi,
  • Amrita Banerjee,
  • Arpita Chattopadhyay,
  • Samir Kumar Pal,
  • Ahmed Kamal,
  • Saleh A. Ahmed

DOI
https://doi.org/10.3390/ph16040516
Journal volume & issue
Vol. 16, no. 4
p. 516

Abstract

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The mounting evidence of bacterial resistance against commonly prescribed antibiotics warrants the development of new antibacterial drugs on an urgent basis. Linezolid, an oxazolidinone antibiotic, is a lead molecule in designing new oxazolidinones as antibacterial agents. In this study, we report the antibacterial potential of the novel oxazolidinone-sulphonamide/amide conjugates that were recently reported by our research group. The antibacterial assays showed that, from the series, oxazolidinones 2 and 3a exhibited excellent potency (MIC of 1.17 μg/mL) against B. subtilis and P. aeruginosa strains, along with good antibiofilm activity. Docking studies revealed higher binding affinities of oxazolidinones 2 and 3a compared to linezolid, which were further validated by molecular dynamics simulations. In addition to this, other computational studies, one-descriptor (log P) analysis, ADME-T and drug likeness studies demonstrated the potential of these novel linezolid-based oxazolidinones to be taken forward for further studies.

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