Design and Evaluation of Potent EGFR Inhibitors through the Incorporation of Macrocyclic Polyamine Moieties into the 4-Anilinoquinazoline Scaffold

J Med Chem. 2018 Dec 27;61(24):11372-11383. doi: 10.1021/acs.jmedchem.8b01612. Epub 2018 Dec 14.

Abstract

Adenosine triphosphate (ATP)-competitive inhibitors of the epidermal growth factor receptor (EGFR) have provided a significant improvement in the disease outcome of nonsmall cell lung cancer (NSCLC). Unfortunately, some marketed drugs affect a transient beneficial response in EGFR mutant NSCLC patients. We reported a series of potential EGFR inhibitors through incorporation of macrocyclic polyamine into 4-anilinoquinazoline scaffold. It is expected that anilinoquinazoline part effectively bind to EGFR domain, while ATP molecules are captured by a macrocyclic polyamine moiety. In vitro experiments exhibited that most of tested compounds suppressed tumor cell proliferation more strongly than Gefitinib and Lapatinib (dual inhibitor of EGFR/HER2) as controls. In kinase assays, the compound 1f showed excellent dual inhibition activity toward EGFRWT (IC50 = 1.4 nM) and HER2 (IC50 = 2.1 nM). In vivo pharmacology evaluation of 1f showed significant antitumor activity (TGI = 44.2%) in A549 xenografts mice. The current work provided a feasible solution to optimize anilinoquinazoline-based inhibitors.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • A549 Cells
  • Adenosine Triphosphate / metabolism
  • Aniline Compounds / chemistry*
  • Animals
  • Antineoplastic Agents / chemistry
  • Antineoplastic Agents / pharmacology*
  • Apoptosis / drug effects
  • Cell Line, Tumor
  • ErbB Receptors / antagonists & inhibitors
  • ErbB Receptors / metabolism
  • Female
  • Humans
  • Lapatinib / chemistry
  • Lapatinib / pharmacology
  • Mice, Inbred BALB C
  • Molecular Docking Simulation
  • Polyamines / chemistry
  • Protein Domains
  • Protein Kinase Inhibitors / chemistry*
  • Protein Kinase Inhibitors / pharmacology*
  • Quinazolines / chemistry*
  • Xenograft Model Antitumor Assays

Substances

  • Aniline Compounds
  • Antineoplastic Agents
  • Polyamines
  • Protein Kinase Inhibitors
  • Quinazolines
  • anilinoquinazoline
  • Lapatinib
  • Adenosine Triphosphate
  • EGFR protein, human
  • ErbB Receptors