Synthesis and preliminary structure-activity relationship study of 3-methylquinazolinone derivatives as EGFR inhibitors with enhanced antiproliferative activities against tumour cells

J Enzyme Inhib Med Chem. 2021 Dec;36(1):1205-1216. doi: 10.1080/14756366.2021.1933466.

Abstract

In this paper, a set of 3-methylquniazolinone derivatives were designed, synthesised, and studied the preliminary structure-activity relationship for antiproliferative activities. All target compounds performed significantly inhibitory effects against wild type epidermal growth factor receptor tyrosine kinase (EGFRwt-TK) and tumour cells (A431, A549, MCF-7, and NCI-H1975). In particular, compound 4d 3-fluoro-N-(4-((3-methyl-4-oxo-3,4-dihydroquinazolin-2-yl)methoxy)phenyl)benzamide showed higher antiproliferative activities against all tumour cells than Gefitinib (IC50 of 3.48, 2.55, 0.87 and 6.42 μM, respectively). Furthermore, compound 4d could induce apoptosis of MCF-7 cells and arrest in G2/M phase at the tested concentration. Molecular docking and ADMET studies showed that compound 4d could closely form many hydrogen bonds with EGFRwt-TK. Therefore, compound 4d is potential to develop as novel anti-cancer drug.

Keywords: EGFR; Quinazolinone; antiproliferative; kinase inhibitor; structure-activity relationship.

MeSH terms

  • Animals
  • Antineoplastic Agents / chemical synthesis
  • Antineoplastic Agents / chemistry
  • Antineoplastic Agents / pharmacology*
  • Apoptosis / drug effects
  • Cell Cycle / drug effects
  • Cell Line
  • Cell Proliferation / drug effects
  • Crystallography, X-Ray
  • Dose-Response Relationship, Drug
  • Drug Screening Assays, Antitumor
  • ErbB Receptors / antagonists & inhibitors
  • ErbB Receptors / metabolism
  • Humans
  • Molecular Docking Simulation
  • Molecular Structure
  • Protein Kinase Inhibitors / chemical synthesis
  • Protein Kinase Inhibitors / chemistry
  • Protein Kinase Inhibitors / pharmacology*
  • Quinazolinones / chemical synthesis
  • Quinazolinones / chemistry
  • Quinazolinones / pharmacology*
  • Rats
  • Structure-Activity Relationship

Substances

  • Antineoplastic Agents
  • Protein Kinase Inhibitors
  • Quinazolinones
  • EGFR protein, human
  • ErbB Receptors

Grants and funding

This work was financially supported by GZU (Guizhou University) Found for Newly Enrolled Talent ([2019]15), GZU (Guizhou University) Found for Cultivation ([2019]65), and the State Key Laboratory of Functions and Applications of Medicinal Plants, Guizhou Medical University [Grant number FAMP202005K]; Guizhou Science and Technology Platform Talents [QKHRCPT [2019]5106].