Phthalazinone pyrazoles as potent, selective, and orally bioavailable inhibitors of Aurora-A kinase

J Med Chem. 2011 Jan 13;54(1):312-9. doi: 10.1021/jm101346r. Epub 2010 Dec 3.

Abstract

The inhibition of Aurora kinases in order to arrest mitosis and subsequently inhibit tumor growth via apoptosis of proliferating cells has generated significant discussion within the literature. We report a novel class of Aurora kinase inhibitors based upon a phthalazinone pyrazole scaffold. The development of the phthalazinone template resulted in a potent Aurora-A selective series of compounds (typically >1000-fold selectivity over Aurora-B) that display good pharmacological profiles with significantly improved oral bioavailability compared to the well studied Aurora inhibitor VX-680.

MeSH terms

  • Administration, Oral
  • Antineoplastic Agents / chemical synthesis*
  • Antineoplastic Agents / chemistry
  • Antineoplastic Agents / pharmacology
  • Aurora Kinase B
  • Aurora Kinases
  • Biological Availability
  • Cell Line, Tumor
  • Crystallography, X-Ray
  • Drug Screening Assays, Antitumor
  • Humans
  • Models, Molecular
  • Molecular Structure
  • Phthalazines / chemical synthesis*
  • Phthalazines / chemistry
  • Phthalazines / pharmacology
  • Protein Serine-Threonine Kinases / antagonists & inhibitors*
  • Pyrazoles / chemical synthesis*
  • Pyrazoles / chemistry
  • Pyrazoles / pharmacology
  • Structure-Activity Relationship

Substances

  • Antineoplastic Agents
  • Phthalazines
  • Pyrazoles
  • AURKB protein, human
  • Aurora Kinase B
  • Aurora Kinases
  • Protein Serine-Threonine Kinases

Associated data

  • PDB/3P9J