Discovery of selective EGFR modulator to inhibit L858R/T790M double mutants bearing a N-9-Diphenyl-9H-purin-2-amine scaffold

Bioorg Med Chem. 2018 May 1;26(8):1810-1822. doi: 10.1016/j.bmc.2018.02.029. Epub 2018 Feb 17.

Abstract

Based upon the modeling binding mode of marketed AZD9291 with T790M, a series of N-9-Diphenyl-9H-purin-2-amine derivatives were designed and synthesized with the purpose to overcome the drug resistance resulted from T790M/L858R double mutations. The most potent compound 23a showed excellent enzyme inhibitory activities and selectivity with nanomolar IC50 values for both the single T790M and double T790M/L858R mutant EGFRs, and was more than 8-fold selective for wild type EGFR. Compound 23a displayed strong antiproliferative activity against the H1975 non-small cell lung cancer (NSCLC) cells bearing T790M/L858R. And it was less potent against A549 (WT EGFR and k-Ras mutation) and HT-29 (non-special gene type) cells, showing a high safety index.

Keywords: L858R/T790M double mutants; N-9-Diphenyl-9H-purin-2-amine derivatives; Non-small cell lung cancer.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Antineoplastic Agents / chemical synthesis
  • Antineoplastic Agents / chemistry
  • Antineoplastic Agents / pharmacology*
  • Benzene Derivatives / chemical synthesis
  • Benzene Derivatives / chemistry
  • Benzene Derivatives / pharmacology*
  • Cell Line, Tumor
  • Cell Proliferation / drug effects
  • Dose-Response Relationship, Drug
  • Drug Discovery
  • Drug Screening Assays, Antitumor
  • ErbB Receptors / antagonists & inhibitors*
  • ErbB Receptors / genetics
  • ErbB Receptors / metabolism
  • HT29 Cells
  • Humans
  • Molecular Structure
  • Mutation
  • Protein Kinase Inhibitors / chemical synthesis
  • Protein Kinase Inhibitors / chemistry
  • Protein Kinase Inhibitors / pharmacology*
  • Purines / chemical synthesis
  • Purines / chemistry
  • Purines / pharmacology*
  • Structure-Activity Relationship

Substances

  • Antineoplastic Agents
  • Benzene Derivatives
  • Protein Kinase Inhibitors
  • Purines
  • EGFR protein, human
  • ErbB Receptors