Discovery of a non-zwitterionic oseltamivir analogue as a potent influenza a neuraminidase inhibitor

Eur J Med Chem. 2020 Aug 15:200:112423. doi: 10.1016/j.ejmech.2020.112423. Epub 2020 May 12.

Abstract

The most of potent neuraminidase inhibitors as zwitterions with poor lipophilicity suffered from the poor oral bioavailability. Herein, we describe a rational journey to discover a non-zwitterionic neuraminidase inhibitor 24a containing urea. It showed potent inhibitions against neuraminidases from group 1(H5N1 and H1N1) and group 2 (H3N2) subtypes and exhibited more strong inhibitory activities against neuraminidases from H274Y mutants than oseltamivir carboxylate. Whether administrated by orally or intravenous injection, the pharmacokinetic profile of compound 24a in SD rats were improved compared to oseltamivir carboxylate.

Keywords: Influenza; Neuraminidase inhibitors; Oral bioavailability; Oseltamivir analogues; Urea.

MeSH terms

  • Antiviral Agents / chemical synthesis
  • Antiviral Agents / chemistry
  • Antiviral Agents / pharmacology*
  • Dose-Response Relationship, Drug
  • Drug Discovery*
  • Enzyme Inhibitors / chemical synthesis
  • Enzyme Inhibitors / chemistry
  • Enzyme Inhibitors / pharmacology*
  • Influenza A Virus, H1N1 Subtype / drug effects
  • Influenza A Virus, H1N1 Subtype / enzymology
  • Influenza A Virus, H3N2 Subtype / drug effects
  • Influenza A Virus, H3N2 Subtype / enzymology
  • Influenza A Virus, H5N1 Subtype / drug effects
  • Influenza A Virus, H5N1 Subtype / enzymology
  • Microbial Sensitivity Tests
  • Molecular Structure
  • Neuraminidase / antagonists & inhibitors*
  • Neuraminidase / metabolism
  • Oseltamivir / chemical synthesis
  • Oseltamivir / chemistry
  • Oseltamivir / pharmacology*
  • Structure-Activity Relationship
  • Viral Proteins / antagonists & inhibitors*
  • Viral Proteins / metabolism

Substances

  • Antiviral Agents
  • Enzyme Inhibitors
  • Viral Proteins
  • Oseltamivir
  • NA protein, influenza A virus
  • Neuraminidase