Elaboration of tetra-orthogonally-substituted aromatic scaffolds towards novel EGFR-kinase inhibitors

Org Biomol Chem. 2016 Sep 21;14(35):8246-52. doi: 10.1039/c6ob01394e. Epub 2016 Jul 25.

Abstract

Nitration of three regioisomers of bromo-fluorobenzaldehyde proceeds regioselectively, notably with H2SO4/HNO3 at 0 °C. The thereby synthesized tetrasubstituted aromatics, endowed with orthogonal substituents, can be elaborated via Pd-catalysed coupling, reduction and reductive amination reactions. As a test-case, these compounds were converted into EGFR inhibitors related to Gefitinib, whose activity was rationalised by docking studies.

MeSH terms

  • Amination
  • Animals
  • CHO Cells
  • Catalysis
  • Cricetulus
  • Drug Discovery / methods
  • ErbB Receptors / antagonists & inhibitors*
  • ErbB Receptors / metabolism
  • Gefitinib
  • Humans
  • Molecular Docking Simulation
  • Molecular Structure
  • Palladium / chemistry
  • Protein Kinase Inhibitors / chemical synthesis
  • Protein Kinase Inhibitors / chemistry*
  • Quinazolines / chemistry
  • Small Molecule Libraries / chemical synthesis
  • Small Molecule Libraries / chemistry*
  • Stereoisomerism
  • Structure-Activity Relationship

Substances

  • Protein Kinase Inhibitors
  • Quinazolines
  • Small Molecule Libraries
  • Palladium
  • ErbB Receptors
  • Gefitinib