Structural modifications of indolinones bearing a pyrrole moiety and discovery of a multi-kinase inhibitor with potent antitumor activity

Bioorg Med Chem. 2020 Jun 1;28(11):115486. doi: 10.1016/j.bmc.2020.115486. Epub 2020 Apr 3.

Abstract

Structural modifications of compound 2, an angiokinase inhibitor reported by our group were performed, which led to the discovery of methyl (Z)-3-(((4-(2-methyl-5-((4-methylpiperazin-1-yl)methyl)-1H-pyrrol-1-yl)phenyl)amino)(phenyl)methylene)-2-oxoindoline-6-carboxylate (7h). Compound 7h exhibited excellent inhibitory activity against angiokinases including VEGFR-1/2/3, PDGFRα/β, and FGFR-1, as well as LYN and c-KIT kinases. At the cellular level, compound 7h significantly attenuated phosphorylation of AKT and ERK proteins, potently inhibited colony formation of HT-29, MKN74, and HepG2 cancer cells, and induced cell apoptosis. Upon incubation with human liver microsome, 7h exhibited comparable metabolic stability to nintedanib. Compound 7h has emerged as a promising lead compound for future drug design.

Keywords: Antitumor activity; Multi-kinase inhibitor; Structural modification.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Antineoplastic Agents / chemical synthesis
  • Antineoplastic Agents / chemistry
  • Antineoplastic Agents / pharmacology*
  • Cell Proliferation / drug effects
  • Dose-Response Relationship, Drug
  • Drug Discovery*
  • Drug Screening Assays, Antitumor
  • Female
  • Humans
  • Mice
  • Mice, Nude
  • Molecular Docking Simulation
  • Molecular Structure
  • Oxindoles / chemical synthesis
  • Oxindoles / chemistry
  • Oxindoles / pharmacology*
  • Protein Kinase Inhibitors / chemical synthesis
  • Protein Kinase Inhibitors / chemistry
  • Protein Kinase Inhibitors / pharmacology*
  • Protein Kinases / metabolism*
  • Pyrroles / chemistry
  • Pyrroles / pharmacology*
  • Structure-Activity Relationship
  • Tumor Cells, Cultured

Substances

  • Antineoplastic Agents
  • Oxindoles
  • Protein Kinase Inhibitors
  • Pyrroles
  • Protein Kinases