Design, synthesis and evaluation of the osimertinib analogue (C-005) as potent EGFR inhibitor against NSCLC

Bioorg Med Chem. 2018 Dec 15;26(23-24):6135-6145. doi: 10.1016/j.bmc.2018.10.018. Epub 2018 Oct 21.

Abstract

Osimertinib has been approved as a first-line treatment for non-small-cell lung cancer (NSCLC) patients whose tumor carries EGFR activation and / or resistant mutations. To mitigate Osimertinib's toxicity caused by AZ5104, the N-demethylation metabolite of Osimertinib, we designed and synthesized a series of Osimertinib analogs with different headpieces. In vitro and in vivo analysis rendered a potential clinical candidate C-005 which had pyrrolo-pyridine headpiece. Biochemically, C-005 and its main human hepatocyte metabolite showed over 30 fold selectivity of L858R/T790M mutant EGFR over WT EGFR. Such selectivity profile was retained at cellular level. In general, C-005 is 2-14 fold more selective than Osimertinib in a panel of WT EGFR cancer cell lines. Furthermore, C-005 demonstrated robust antitumor efficacy and good tolerability in NCI-H1975, PC-9 and HCC827 xenograft mouse models, making it a potential candidate for human test in clinical.

Keywords: Epidermal growth factor receptor; N-demethyl metabolite; Non-small-cell lung cancer; Osimertinib; Pyrrolo-pyridine headpiece.

MeSH terms

  • Acrylamides
  • Aniline Compounds
  • Animals
  • Antineoplastic Agents / chemical synthesis
  • Antineoplastic Agents / chemistry
  • Antineoplastic Agents / pharmacology*
  • Carcinoma, Non-Small-Cell Lung / drug therapy*
  • Carcinoma, Non-Small-Cell Lung / metabolism
  • Carcinoma, Non-Small-Cell Lung / pathology
  • Cell Proliferation / drug effects
  • Dose-Response Relationship, Drug
  • Drug Design*
  • Drug Screening Assays, Antitumor
  • ErbB Receptors / antagonists & inhibitors
  • ErbB Receptors / genetics
  • ErbB Receptors / metabolism
  • Female
  • Humans
  • Lung Neoplasms / drug therapy*
  • Lung Neoplasms / metabolism
  • Lung Neoplasms / pathology
  • Mice
  • Mice, Nude
  • Molecular Structure
  • Neoplasms, Experimental / drug therapy
  • Neoplasms, Experimental / metabolism
  • Neoplasms, Experimental / pathology
  • Piperazines / chemical synthesis
  • Piperazines / chemistry
  • Piperazines / pharmacology*
  • Protein Kinase Inhibitors / chemical synthesis
  • Protein Kinase Inhibitors / chemistry
  • Protein Kinase Inhibitors / pharmacology*
  • Structure-Activity Relationship
  • Tumor Cells, Cultured

Substances

  • Acrylamides
  • Aniline Compounds
  • Antineoplastic Agents
  • Piperazines
  • Protein Kinase Inhibitors
  • osimertinib
  • EGFR protein, human
  • ErbB Receptors