Discovery of novel anti-angiogenesis agents. Part 7: Multitarget inhibitors of VEGFR-2, TIE-2 and EphB4

Eur J Med Chem. 2017 Dec 1:141:506-518. doi: 10.1016/j.ejmech.2017.10.030. Epub 2017 Oct 12.

Abstract

Herein, we embarked on a structural optimization campaign aiming at the discovery of second generation anti-angiogenesis agents with our previously reported BPS-7 as lead compound. A library of 27 compounds has been afforded based on the highly conserved ATP-binding pocket of VEGFR-2, Tie-2, and EphB4. Several title compounds exhibited simultaneous inhibitory effects against three angiogenic RTKs. These compounds with a 'triplet' inhibition profile have been identified as novel anti-angiogenic and anticancer agents. The representative VDAU11 displayed prominent anti-angiogenic and anticancer potency and could be considered as a candidate for further optimization. These results indicate that N-(pyridin-2-yl)acrylamide could serve as a novel hinge-binding group of triple inhibitors.

Keywords: Angiogenic RTKs; Anti-angiogenesis agents; Hinge-binding group; N-(pyridin-2-yl)acrylamide; Triple inhibitors.

MeSH terms

  • Angiogenesis Inhibitors / chemical synthesis
  • Angiogenesis Inhibitors / chemistry
  • Angiogenesis Inhibitors / pharmacology*
  • Antineoplastic Agents / chemical synthesis
  • Antineoplastic Agents / chemistry
  • Antineoplastic Agents / pharmacology*
  • Cell Proliferation / drug effects
  • Dose-Response Relationship, Drug
  • Drug Discovery
  • Drug Screening Assays, Antitumor
  • Humans
  • Molecular Structure
  • Neovascularization, Pathologic / drug therapy*
  • Neovascularization, Pathologic / metabolism
  • Neovascularization, Pathologic / pathology
  • Protein Kinase Inhibitors / chemical synthesis
  • Protein Kinase Inhibitors / chemistry
  • Protein Kinase Inhibitors / pharmacology*
  • Receptor, EphB4 / antagonists & inhibitors*
  • Receptor, EphB4 / metabolism
  • Receptor, TIE-2 / antagonists & inhibitors*
  • Receptor, TIE-2 / metabolism
  • Structure-Activity Relationship
  • Vascular Endothelial Growth Factor Receptor-2 / antagonists & inhibitors*
  • Vascular Endothelial Growth Factor Receptor-2 / metabolism

Substances

  • Angiogenesis Inhibitors
  • Antineoplastic Agents
  • Protein Kinase Inhibitors
  • KDR protein, human
  • Receptor, EphB4
  • Receptor, TIE-2
  • Vascular Endothelial Growth Factor Receptor-2