3'-O-Substituted 5-(perylen-3-ylethynyl)-2'-deoxyuridines as tick-borne encephalitis virus reproduction inhibitors

Eur J Med Chem. 2018 Jul 15:155:77-83. doi: 10.1016/j.ejmech.2018.05.040. Epub 2018 May 26.

Abstract

A series of analogues of potent antiviral perylene nucleoside dUY11 with methylthiomethyl (MTM), azidomethyl (AZM) and HO-C1-4-alkyl-1,2,3-triazol-1,4-diyl groups at 3'-O-position as well as the two products of copper-free alkyne-azide cycloaddition of the AZM derivative were prepared and evaluated against tick-borne encephalitis virus (TBEV). Four compounds (4, 6, 8a, 8b) showed EC50 ≤ 10 nM, thus appearing the most potent TBEV inhibitors to date. Moreover, these nucleosides have higher lipophilicity (clogP) and increased solubility in aq. DMSO vs. parent compound dUY11.

Keywords: Antiviral activity; Cycloaddition; Lipophilicity; Nucleoside; Tick-borne encephalitis virus.

MeSH terms

  • Animals
  • Antiviral Agents / chemical synthesis
  • Antiviral Agents / chemistry
  • Antiviral Agents / pharmacology*
  • Cell Death / drug effects
  • Cell Line
  • Deoxyuridine / chemical synthesis
  • Deoxyuridine / chemistry
  • Deoxyuridine / pharmacology*
  • Dose-Response Relationship, Drug
  • Encephalitis Viruses, Tick-Borne / drug effects*
  • Microbial Sensitivity Tests
  • Molecular Structure
  • Structure-Activity Relationship
  • Swine
  • Virus Replication / drug effects

Substances

  • Antiviral Agents
  • Deoxyuridine