Discovery of N-substituted 3-arylisoquinolone derivatives as antitumor agents originating from O-substituted 3-arylisoquinolines via [2,3] or [3,3] rearrangement

Eur J Med Chem. 2014 Apr 22:77:204-10. doi: 10.1016/j.ejmech.2014.03.008. Epub 2014 Mar 6.

Abstract

The present study discovers multiple N-substituted 3-arylisoquinolone derivatives as antitumor agents originating from O-substituted 3-arylisoquinolines via [2,3] or [3,3] rearrangement. The current [2,3] rearrangement of epoxy or acetal O-substituents converting to diol or alcohol N-substituents can be promoted by silica gel or by diluted hydrochloric acid, which is distinct from previously reported [2,3] rearrangements. Some of the derivatives displayed comparable or even stronger cytotoxicity than sorafenib and vemurafenib on HCT116 colon carcinoma and A375 melanoma cell lines. Therefore, the rearrangement via intramolecular carbon-oxygen bond cleavage and carbon-nitrogen bond formation should be a useful approach for developing novel anticancer drugs derived from isoquinolones.

Keywords: 3-Arylisoquinolone; Antitumor; [2,3] rearrangement; [3,3] rearrangement.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Antineoplastic Agents / chemical synthesis
  • Antineoplastic Agents / chemistry*
  • Antineoplastic Agents / pharmacology*
  • Cell Line, Tumor
  • Cell Proliferation / drug effects
  • Dose-Response Relationship, Drug
  • Drug Discovery*
  • Drug Screening Assays, Antitumor
  • HCT116 Cells
  • Humans
  • Isoquinolines / chemical synthesis
  • Isoquinolines / chemistry*
  • Isoquinolines / pharmacology*
  • Molecular Structure
  • Structure-Activity Relationship

Substances

  • Antineoplastic Agents
  • Isoquinolines