Heterocyclic acyl-phosphate bioisostere-based inhibitors of Staphylococcus aureus biotin protein ligase

Bioorg Med Chem Lett. 2014 Oct 1;24(19):4689-4693. doi: 10.1016/j.bmcl.2014.08.030. Epub 2014 Aug 19.

Abstract

Inhibitors of Staphylococcus aureus biotin protein ligase (SaBPL) are generated by replacing the acyl phosphate group of biotinyl-5'-AMP with either a 1,2,3-triazole (see 5/10a/10b) or a 1,2,4-oxadiazole (see 7) bioisostere. Importantly, the inhibitors are inactive against the human BPL. The nature of the 5-substituent in the component benzoxazolone of the optimum 1,2,3-triazole series is critical to activity, where this group binds in the ATP binding pocket of the enzyme.

Keywords: Antibiotics; Bioisosteres; Drug design; Inhibitors; Ligases.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Bacterial Proteins / antagonists & inhibitors*
  • Bacterial Proteins / metabolism
  • Biotin / antagonists & inhibitors*
  • Biotin / metabolism
  • Crystallography, X-Ray
  • Enzyme Inhibitors / chemical synthesis
  • Enzyme Inhibitors / chemistry
  • Enzyme Inhibitors / pharmacology*
  • Heterocyclic Compounds / chemical synthesis
  • Heterocyclic Compounds / chemistry
  • Heterocyclic Compounds / pharmacology*
  • Humans
  • Ligases / antagonists & inhibitors*
  • Ligases / metabolism
  • Models, Molecular
  • Molecular Structure
  • Organophosphates / chemical synthesis
  • Organophosphates / chemistry
  • Organophosphates / pharmacology*
  • Staphylococcus aureus / enzymology

Substances

  • Bacterial Proteins
  • Enzyme Inhibitors
  • Heterocyclic Compounds
  • Organophosphates
  • Biotin
  • Ligases