Structural modification of 3-arylisoquinolines to isoindolo[2,1-b]isoquinolinones for the development of novel topoisomerase 1 inhibitors with molecular docking study

Bioorg Med Chem Lett. 2009 May 1;19(9):2551-4. doi: 10.1016/j.bmcl.2009.03.042. Epub 2009 Mar 16.

Abstract

Isoindolo[2,1-b]isoquinolinones 9a-i were designed and synthesized as constrained forms of 3-arylisoquinolines through an intramolecular cyclization reaction. Among the synthesized compounds, 9d exhibited potent topoisomerase 1 inhibitory activity with cytotoxicities against three different tumor cell lines. A Surflex-dock docking study was performed to clarify the topoisomerase 1 inhibitory activity of 9d.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Antineoplastic Agents / chemical synthesis*
  • Antineoplastic Agents / pharmacology
  • Camptothecin / chemistry
  • Camptothecin / pharmacology
  • Cell Line, Tumor
  • Chemistry, Pharmaceutical / methods*
  • Drug Design
  • Drug Screening Assays, Antitumor
  • Humans
  • Isoquinolines / chemistry*
  • Models, Chemical
  • Molecular Conformation
  • Molecular Structure
  • Topoisomerase I Inhibitors*

Substances

  • Antineoplastic Agents
  • Isoquinolines
  • Topoisomerase I Inhibitors
  • Camptothecin