Conformationally-restricted cyclic sulfones as potent and selective mTOR kinase inhibitors

Bioorg Med Chem Lett. 2012 Aug 1;22(15):5114-7. doi: 10.1016/j.bmcl.2012.05.104. Epub 2012 Jun 6.

Abstract

Novel conformationally-restricted mTOR kinase inhibitors with cyclic sulfone scaffold were designed. Synthesis and structure-activity relationship (SAR) studies are described with emphasis on optimization of the mTOR potency and selectivity against class I PI3Kα kinase. PF-05139962 was identified with excellent mTOR biochemical inhibition, cellular potency, kinase selectivity and in vitro ADME properties.

MeSH terms

  • Animals
  • Binding Sites
  • Computer Simulation
  • Half-Life
  • Humans
  • Microsomes, Liver / metabolism
  • Morpholines / chemical synthesis
  • Morpholines / chemistry*
  • Morpholines / pharmacokinetics
  • Phosphatidylinositol 3-Kinases / metabolism
  • Phosphoinositide-3 Kinase Inhibitors
  • Protein Kinase Inhibitors / chemical synthesis
  • Protein Kinase Inhibitors / chemistry*
  • Protein Kinase Inhibitors / pharmacokinetics
  • Protein Structure, Tertiary
  • Rats
  • Structure-Activity Relationship
  • Sulfones / chemical synthesis
  • Sulfones / chemistry*
  • Sulfones / pharmacokinetics
  • TOR Serine-Threonine Kinases / antagonists & inhibitors*
  • TOR Serine-Threonine Kinases / metabolism

Substances

  • Morpholines
  • PF-05139962
  • Phosphoinositide-3 Kinase Inhibitors
  • Protein Kinase Inhibitors
  • Sulfones
  • TOR Serine-Threonine Kinases