Synthesis and structure-activity relationship of 4-substituted 2-(2-acetyloxyethyl)-8-(morpholine-4-sulfonyl)pyrrolo[3,4-c]quinoline-1,3-diones as potent caspase-3 inhibitors

J Med Chem. 2005 Jun 2;48(11):3680-3. doi: 10.1021/jm048987t.

Abstract

Synthesis, biological evaluation, and SAR dependencies for a series of novel 1,3-dioxo-2,3-dihydro-1H-pyrrolo[3,4-c]quinoline inhibitors of caspase-3 are described. The inhibitory activity of the synthesized compounds is highly dependent on the nature of 4-substituents on the core scaffold. 4-methyl-and 4-phenyl-substituted derivatives, which were the most active compounds within this series, inhibited caspase-3 with IC50 of 23 and 27 nM, respectively.

MeSH terms

  • Apoptosis / drug effects
  • Caspase 3
  • Caspase Inhibitors*
  • Enzyme Inhibitors / chemical synthesis*
  • Enzyme Inhibitors / chemistry
  • Enzyme Inhibitors / pharmacology
  • Humans
  • Jurkat Cells
  • Morpholines / chemical synthesis*
  • Morpholines / chemistry
  • Morpholines / pharmacology
  • Pyrroles / chemical synthesis*
  • Pyrroles / chemistry
  • Pyrroles / pharmacology
  • Quinolines / chemical synthesis*
  • Quinolines / chemistry
  • Quinolines / pharmacology
  • Structure-Activity Relationship

Substances

  • Caspase Inhibitors
  • Enzyme Inhibitors
  • Morpholines
  • Pyrroles
  • Quinolines
  • CASP3 protein, human
  • Caspase 3