Design and synthesis of 2-amino-pyrazolopyridines as Polo-like kinase 1 inhibitors

Bioorg Med Chem Lett. 2008 Oct 15;18(20):5648-52. doi: 10.1016/j.bmcl.2008.08.095. Epub 2008 Aug 29.

Abstract

A series of 2-amino-pyrazolopyridines was designed and synthesized as Polo-like kinase (Plk) inhibitors based on a low micromolar hit. The SAR was developed to provide compounds exhibiting low nanomolar inhibitory activity of Plk1; the phenotype of treated cells is consistent with Plk1 inhibition. A co-crystal structure of one of these compounds with zPlk1 confirms an ATP-competitive binding mode.

MeSH terms

  • Adenosine Triphosphate / chemistry
  • Amino Acid Motifs
  • Cell Cycle
  • Cell Cycle Proteins / antagonists & inhibitors*
  • Chemistry, Pharmaceutical / methods*
  • Crystallography, X-Ray
  • Drug Design
  • Humans
  • Inhibitory Concentration 50
  • Models, Chemical
  • Molecular Conformation
  • Phenotype
  • Polo-Like Kinase 1
  • Protein Serine-Threonine Kinases / antagonists & inhibitors*
  • Proto-Oncogene Proteins / antagonists & inhibitors*
  • Pyrazoles / chemical synthesis*
  • Pyrazoles / chemistry
  • Pyrazoles / pharmacology
  • Pyridines / chemical synthesis*
  • Pyridines / chemistry
  • Pyridines / pharmacology
  • Structure-Activity Relationship

Substances

  • Cell Cycle Proteins
  • Proto-Oncogene Proteins
  • Pyrazoles
  • Pyridines
  • pyrazolopyridine
  • Adenosine Triphosphate
  • Protein Serine-Threonine Kinases