Discovery of acyl ureas as highly selective small molecule CSF1R kinase inhibitors

Bioorg Med Chem Lett. 2022 Oct 15:74:128929. doi: 10.1016/j.bmcl.2022.128929. Epub 2022 Aug 9.

Abstract

Based on the structure of an early lead identified in Deciphera's proprietary compound collection of switch control kinase inhibitors and using a combination of medicinal chemistry guided structure activity relationships and structure-based drug design, a novel series of potent acyl urea-based CSF1R inhibitors was identified displaying high selectivity for CSF1R versus the other members of the Type III receptor tyrosine kinase (RTK) family members (KIT, PDGFR-α, PDGFR-β, and FLT3), VEGFR2 and MET. Based on in vitro biology, in vitro ADME and in vivo PK/PD studies, compound 10 was selected as an advanced lead for Deciphera's CSF1R research program.

Keywords: Acyl ureas; CSF1R; Cancer; Kinase.

MeSH terms

  • Drug Design
  • Protein Kinase Inhibitors / chemistry
  • Protein Kinase Inhibitors / pharmacology
  • Receptor Protein-Tyrosine Kinases*
  • Receptor, Platelet-Derived Growth Factor beta
  • Structure-Activity Relationship
  • Urea* / chemistry
  • Urea* / pharmacology

Substances

  • Protein Kinase Inhibitors
  • Urea
  • Receptor Protein-Tyrosine Kinases
  • Receptor, Platelet-Derived Growth Factor beta