Phosphamide-containing diphenylpyrimidine analogues (PA-DPPYs) as potent focal adhesion kinase (FAK) inhibitors with enhanced activity against pancreatic cancer cell lines

Bioorg Med Chem. 2017 Dec 15;25(24):6313-6321. doi: 10.1016/j.bmc.2017.09.041. Epub 2017 Sep 30.

Abstract

A family of phosphamide-containing diphenylpyrimidine analogues (PA-DPPYs) were synthesized as potent focal adhesion kinase (FAK) inhibitors. The PA-DPPY derivatives could significantly inhibit the FAK enzymatic activity at concentrations lower than 10.69 nM. Among them, compounds 7a and 7e were two of the most active FAK inhibitors, possessing IC50 values of 4.25 nM and 4.65 nM, respectively. In particular, compound 7e also displayed strong activity against AsPC cell line, with an IC50 of 1.66 μM, but show low activity against the normal HPDE6-C7 cells (IC50 > 20 μM), indicating its low cell cytotoxicity. Additionally, flow cytometry analysis showed that after treatment with 7e (8 μM, 72 h), both AsPC and Panc cells growth were almost totally inhibited, with a cell viability rate of 16.8% and 18.1%, respectively. Overall, compound 7e may be served as a valuable FAK inhibitor for the treatment of pancreatic cancer.

Keywords: FAK; Inhibitor; Pancreatic cancer; Pyrimidine.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Antineoplastic Agents / chemical synthesis
  • Antineoplastic Agents / chemistry
  • Antineoplastic Agents / pharmacology*
  • Cell Line, Tumor
  • Cell Proliferation / drug effects
  • Dimethoate / chemistry
  • Dimethoate / pharmacology*
  • Dose-Response Relationship, Drug
  • Drug Screening Assays, Antitumor
  • Focal Adhesion Kinase 1 / antagonists & inhibitors*
  • Focal Adhesion Kinase 1 / metabolism
  • Humans
  • Molecular Docking Simulation
  • Molecular Structure
  • Pancreatic Neoplasms / drug therapy*
  • Pancreatic Neoplasms / pathology
  • Protein Kinase Inhibitors / chemical synthesis
  • Protein Kinase Inhibitors / chemistry
  • Protein Kinase Inhibitors / pharmacology*
  • Pyrimidines / chemical synthesis
  • Pyrimidines / chemistry
  • Pyrimidines / pharmacology*
  • Structure-Activity Relationship

Substances

  • Antineoplastic Agents
  • Protein Kinase Inhibitors
  • Pyrimidines
  • Focal Adhesion Kinase 1
  • PTK2 protein, human
  • Dimethoate