3,4-Dihydroxychalcones as potent 5-lipoxygenase and cyclooxygenase inhibitors

J Med Chem. 1993 Nov 26;36(24):3904-9. doi: 10.1021/jm00076a019.

Abstract

A novel series of 3,4-dihydroxychalcones was synthesized to evaluate their effects against 5-lipoxygenase and cyclooxygenase. Almost all compounds exhibited potent inhibitory effects on 5-lipoxygenase with antioxidative effects, and some also inhibited cyclooxygenase. The 2',5'-disubstituted 3,4-dihydroxychalcones with hydroxy or alkoxy groups exhibited optimal inhibition of cyclooxygenase. We found that 2',5'-dimethoxy-3,4-dihydroxychalcone (37; HX-0836) inhibited cyclooxygenase to the same degree as flufenamic acid and 5-lipoxygenase, more than quercetin. Finally, these active inhibitors of 5-lipoxygenase inhibited arachidonic acid-induced mouse ear edema more than phenidone.

MeSH terms

  • Administration, Topical
  • Animals
  • Anti-Inflammatory Agents / chemical synthesis*
  • Anti-Inflammatory Agents / therapeutic use
  • Arachidonic Acid
  • Cell Line
  • Chalcone / analogs & derivatives*
  • Chalcone / chemical synthesis
  • Chalcone / pharmacology
  • Chalcone / therapeutic use
  • Chalcones
  • Cyclooxygenase Inhibitors / chemical synthesis*
  • Cyclooxygenase Inhibitors / pharmacology
  • Edema / chemically induced
  • Edema / drug therapy
  • Lipid Peroxidation / drug effects
  • Lipoxygenase Inhibitors*
  • Male
  • Mice
  • Mice, Inbred ICR
  • Molecular Structure
  • Sheep
  • Structure-Activity Relationship

Substances

  • Anti-Inflammatory Agents
  • Chalcones
  • Cyclooxygenase Inhibitors
  • Lipoxygenase Inhibitors
  • 2',5'-dimethoxy-3,4-dihydroxychalcone
  • Arachidonic Acid
  • Chalcone