Racemic and chiral sulfoxides as potential prodrugs of the COX-2 inhibitors Vioxx and Arcoxia

Bioorg Med Chem Lett. 2006 Jun 15;16(12):3209-12. doi: 10.1016/j.bmcl.2006.03.052. Epub 2006 Apr 17.

Abstract

The preparation of the sulfoxide analogues 2 and 4, and their enantiomeric pure forms is discussed as well as their potential to act as prodrugs to the potent and selective sulfone-containing COX-2 inhibitors rofecoxib and etoricoxib. Sulfoxides 2 and 4 were shown to be effectively transformed in vivo into rofecoxib and etoricoxib, respectively, after oral administration in rats. In the case of sulfoxide 2, both a slightly improved pharmacokinetic profile and a better pharmacological activity in an arthritis model were seen when compared with rofecoxib.

MeSH terms

  • Animals
  • Cyclooxygenase 2 / metabolism
  • Cyclooxygenase 2 Inhibitors / blood
  • Cyclooxygenase 2 Inhibitors / chemical synthesis
  • Cyclooxygenase 2 Inhibitors / chemistry
  • Cyclooxygenase 2 Inhibitors / pharmacology*
  • Etoricoxib
  • Humans
  • Isomerism
  • Lactones / blood
  • Lactones / chemical synthesis
  • Lactones / chemistry*
  • Lactones / pharmacology*
  • Male
  • Molecular Structure
  • Prodrugs / chemical synthesis
  • Prodrugs / chemistry
  • Prodrugs / pharmacokinetics
  • Prodrugs / pharmacology*
  • Pyridines / blood
  • Pyridines / chemical synthesis
  • Pyridines / chemistry*
  • Pyridines / pharmacology*
  • Rats
  • Rats, Wistar
  • Safrole / analogs & derivatives*
  • Safrole / chemistry
  • Solubility
  • Sulfones / blood
  • Sulfones / chemical synthesis
  • Sulfones / chemistry*
  • Sulfones / pharmacology*
  • Temperature
  • Thermodynamics

Substances

  • Cyclooxygenase 2 Inhibitors
  • Lactones
  • Prodrugs
  • Pyridines
  • Sulfones
  • rofecoxib
  • Cyclooxygenase 2
  • Safrole
  • sulfoxide
  • Etoricoxib