Synthesis and biological evaluation of 4,5-diphenyloxazolone derivatives on route towards selective COX-2 inhibitors

  • Yasemin Dündar*
  • , Serdar Ünlü
  • , Erden Banoǧlu
  • , Antonio Entrena
  • , Gabriele Costantino
  • , Maria Teresa Nunez
  • , Francisco Ledo
  • , M. Fethi Şahin
  • , Ningur Noyanalpan
  • *Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

30 Citations (Scopus)

Abstract

A series of 3-unsubstituted/substituted-4,5-diphenyl-2-oxo-3H-1,3-oxazole derivatives were prepared as selective cyclooxygenase-2 (COX-2) inhibitors. Among the synthesized compounds, 4-(4-phenyl-3-methyl-2-oxo-3H-1,3-oxazol-5-yl)benzensulfonamide (compound 6) showed selective COX-2 inhibition with a selectivity index of >50 (IC50COX-1 = >100 μm, IC50COX-2 = 2 μm) in purified enzyme (PE) assay. Compound 6 also exhibited selective COX-2 inhibition in human whole blood assay. Molecular docking studies showed that 6 can be docked into the COX-2 binding site thus providing the molecular basis for its activity.

Original languageEnglish
Pages (from-to)1830-1837
Number of pages8
JournalEuropean Journal of Medicinal Chemistry
Volume44
Issue number5
DOIs
Publication statusPublished - May 2009
Externally publishedYes

Keywords

  • 4,5-Diphenyloxazolone
  • COX-1
  • COX-2
  • Cyclooxygenase inhibition
  • Docking

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