Design and discovery of thioether and nicotinamide containing sorafenib analogues as multikinase inhibitors targeting B-Raf, B-RafV600E and VEGFR-2

Bioorg Med Chem. 2018 May 15;26(9):2381-2391. doi: 10.1016/j.bmc.2018.03.039. Epub 2018 Apr 3.

Abstract

New sorafenib derivatives containing thioether and nicotinamide moiety were designed and synthesized as B-Raf, B-RafV600E and VEGFR-2 multikinase inhibitors. Their in vitro enzymatic inhibitory activities against B-Raf, B-RafV600E and VEGFR-2 and their antiproliferative activities against HCT-116 and B16BL6 cell lines were evaluated and described. Most of the compounds showed potent activities against both cell lines and specific kinases. Compounds a1, b1 and c4, which exhibited the most potent inhibitory activities against B-Raf with IC50 of 21 nM, 27 nM and 17 nM, B-RafV600E with IC50 of 29 nM, 28 nM and 16 nM, VEGFR-2 with IC50 of 84 nM, 46 nM and 63 nM, respectively, and good antiproliferative activities, also demonstrated competitive antiangiogenic activities to sorafenib in in vitro HUVEC tube formation assay.

Keywords: Antitumor; B-Raf; Kinase inhibitor; Nicotinamide; VEGFR-2.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Angiogenesis Inhibitors / chemical synthesis
  • Angiogenesis Inhibitors / chemistry
  • Angiogenesis Inhibitors / pharmacology
  • Animals
  • Antineoplastic Agents / chemical synthesis
  • Antineoplastic Agents / chemistry
  • Antineoplastic Agents / pharmacology*
  • Catalytic Domain
  • Cell Line, Tumor
  • Cell Proliferation / drug effects
  • Drug Design
  • Drug Screening Assays, Antitumor
  • Enzyme Assays
  • Humans
  • Hydrogen Bonding
  • Mice
  • Molecular Docking Simulation
  • Molecular Structure
  • Mutation
  • Protein Kinase Inhibitors / chemical synthesis
  • Protein Kinase Inhibitors / chemistry
  • Protein Kinase Inhibitors / pharmacology*
  • Proto-Oncogene Proteins B-raf / antagonists & inhibitors*
  • Proto-Oncogene Proteins B-raf / chemistry
  • Proto-Oncogene Proteins B-raf / genetics
  • Sorafenib / chemical synthesis
  • Sorafenib / pharmacology*
  • Sulfides / chemical synthesis
  • Sulfides / pharmacology*
  • Vascular Endothelial Growth Factor Receptor-2 / antagonists & inhibitors*

Substances

  • Angiogenesis Inhibitors
  • Antineoplastic Agents
  • Protein Kinase Inhibitors
  • Sulfides
  • Sorafenib
  • Vascular Endothelial Growth Factor Receptor-2
  • Proto-Oncogene Proteins B-raf