Synthesis and SAR of novel tricyclic quinoxalinone inhibitors of poly(ADP-ribose)polymerase-1 (PARP-1)

Bioorg Med Chem Lett. 2009 Aug 1;19(15):4050-4. doi: 10.1016/j.bmcl.2009.06.016. Epub 2009 Jun 13.

Abstract

Based on screening hit 1, a series of tricyclic quinoxalinones have been designed and evaluated for inhibition of PARP-1. Substitutions at the 7- and 8-positions of the quinoxalinone ring led to a number of compounds with good enzymatic and cellular potency. The tricyclic quinoxalinone class is sensitive to modifications of both the amine substituent and the tricyclic core. The synthesis and structure-activity relationship studies are presented.

MeSH terms

  • Antineoplastic Agents / chemical synthesis
  • Antineoplastic Agents / pharmacology
  • Apoptosis
  • Cell Nucleus / metabolism
  • Chemistry, Pharmaceutical / methods*
  • DNA Repair
  • Drug Design
  • Drug Screening Assays, Antitumor
  • Humans
  • Kinetics
  • Models, Molecular
  • Molecular Conformation
  • Niacinamide / chemistry
  • Poly(ADP-ribose) Polymerase Inhibitors*
  • Quinoxalines / chemical synthesis*
  • Quinoxalines / chemistry*
  • Structure-Activity Relationship

Substances

  • Antineoplastic Agents
  • Poly(ADP-ribose) Polymerase Inhibitors
  • Quinoxalines
  • Niacinamide