Discovery of novel 2,4-diarylaminopyrimidine analogues (DAAPalogues) showing potent inhibitory activities against both wild-type and mutant ALK kinases

J Med Chem. 2015 Jan 8;58(1):197-211. doi: 10.1021/jm5005144. Epub 2014 May 8.

Abstract

We have developed a series of new 2,4-diarylaminopyrimidine analogues (DAAPalogues) bearing a flexible amino acid side chain, different from the majority of the literature reported ALK inhibitors that often possess a structurally constrained arylpiperazine fragment or its equivalents in the solvent-interaction region. Extensive structural elaboration led to compound 15 possessing IC50 values of 2.7 and 15.3 nM, respectively, in the ALK wild-type and gate-keeper mutant L1196M enzymatic assays. This compound not only showed high proliferative inhibition against ALK-addicted cells across different oncogenic forms but also effectively suppressed several ALK secondary mutant cells, including the gate-keeper L1196M and F1174L. Significant antitumor efficacy was achieved in the ALK-driven SUP-M2 xenograft model.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Acetanilides / chemistry*
  • Acetanilides / pharmacology*
  • Anaplastic Lymphoma Kinase
  • Animals
  • Antineoplastic Agents / chemistry
  • Antineoplastic Agents / pharmacokinetics
  • Antineoplastic Agents / pharmacology
  • Area Under Curve
  • Cell Line
  • Cell Line, Tumor
  • Cell Proliferation / drug effects
  • Dose-Response Relationship, Drug
  • Drug Discovery
  • Female
  • Humans
  • Mice
  • Mice, Nude
  • Models, Chemical
  • Molecular Structure
  • Mutant Proteins / antagonists & inhibitors*
  • Mutant Proteins / metabolism
  • Mutation
  • NIH 3T3 Cells
  • Neoplasms / drug therapy
  • Neoplasms / pathology
  • Protein Kinase Inhibitors / chemistry*
  • Protein Kinase Inhibitors / pharmacokinetics
  • Protein Kinase Inhibitors / pharmacology*
  • Rats
  • Receptor Protein-Tyrosine Kinases / antagonists & inhibitors*
  • Receptor Protein-Tyrosine Kinases / genetics
  • Receptor Protein-Tyrosine Kinases / metabolism
  • Sulfones / chemistry*
  • Sulfones / pharmacology*
  • Tumor Burden / drug effects
  • Xenograft Model Antitumor Assays

Substances

  • 2-amino-N-(3-((5-chloro-4-((2-(isopropylsulfonyl)phenyl)amino)pyrimidin-2-yl)amino)phenyl)acetamide
  • Acetanilides
  • Antineoplastic Agents
  • Mutant Proteins
  • Protein Kinase Inhibitors
  • Sulfones
  • ALK protein, human
  • Alk protein, mouse
  • Alk protein, rat
  • Anaplastic Lymphoma Kinase
  • Receptor Protein-Tyrosine Kinases