Nucleotide competing reverse transcriptase inhibitors: discovery of a series of non-basic benzofurano[3,2-d]pyrimidin-2-one derived inhibitors

Bioorg Med Chem Lett. 2013 May 1;23(9):2781-6. doi: 10.1016/j.bmcl.2013.02.021. Epub 2013 Feb 13.

Abstract

A HTS screen led to the identification of a benzofurano[3,2-d]pyrimidin-2-one core structure which upon further optimization resulted in 1 as a potent HIV-1 nucleotide competing reverse transcriptase inhibitor (NcRTI). Investigation of the SAR at N-1 allowed significant improvements in potency and when combined with the incorporation of heterocycles at C-8 resulted in potent analogues not requiring a basic amine to achieve antiviral activity. Additional modifications at N-1 resulted in 33 which demonstrated excellent antiviral potency and improved physicochemical properties.

MeSH terms

  • Benzofurans / chemistry*
  • Caco-2 Cells
  • Cell Membrane Permeability / drug effects
  • HIV Reverse Transcriptase / antagonists & inhibitors*
  • HIV Reverse Transcriptase / metabolism
  • HIV-1 / drug effects
  • HIV-1 / enzymology
  • Humans
  • Microsomes, Liver / metabolism
  • Nucleotides / chemistry*
  • Nucleotides / metabolism
  • Protein Binding
  • Pyrimidinones / chemical synthesis
  • Pyrimidinones / chemistry*
  • Pyrimidinones / pharmacology
  • Reverse Transcriptase Inhibitors / chemical synthesis
  • Reverse Transcriptase Inhibitors / chemistry*
  • Reverse Transcriptase Inhibitors / pharmacology
  • Stereoisomerism
  • Structure-Activity Relationship

Substances

  • Benzofurans
  • Nucleotides
  • Pyrimidinones
  • Reverse Transcriptase Inhibitors
  • reverse transcriptase, Human immunodeficiency virus 1
  • HIV Reverse Transcriptase
  • benzofuran