Novel terphenyls as selective cyclooxygenase-2 inhibitors and orally active anti-inflammatory agents.

Article Details

Citation

Copy to clipboard

Li JJ, Norton MB, Reinhard EJ, Anderson GD, Gregory SA, Isakson PC, Koboldt CM, Masferrer JL, Perkins WE, Seibert K, Zhang Y, Zweifel BS, Reitz DB

Novel terphenyls as selective cyclooxygenase-2 inhibitors and orally active anti-inflammatory agents.

J Med Chem. 1996 Apr 26;39(9):1846-56.

PubMed ID

8627608 [ View in PubMed

]

Abstract

A novel series of terphenyl methyl sulfones and sulfonamides have been shown to be highly potent and selective cyclooxygenase-2 (COX-2) inhibitors. The sulfonamide analogs 17 and 21 were found to be much more potent COX-2 inhibitors and orally active anti-inflammatory agents than the corresponding methyl sulfone analogs 16 and 20, respectively, albeit with some decrease in COX-2 selectivity. Structure-activity relationship studies have determined that incorporation of two fluorine atoms in the central phenyl group, as in 20 and 21, is extremely advantageous for both in vitro COX-2 potency and selectivity as well as in vivo activity. Several noticeable examples in the 1,2-diaryl-4,5-difluorobenzenesulfonamide series are 21a-c,k,l,n (COX-2, IC50 = 0.002-0.004 microM), in which all have in vitro COX-1/COX-2 selectivity > 1000. In addition, sulfonamides 21a,b,d,g,j,m,n,q were shown to have greatly enhanced oral activity with more than 90% inhibition of prostaglandin E2 production in the air pouch model of inflammation. Furthermore, sulfonamide 21b was found to be very active in the rat adjuvant-induced arthritis model (ED50 = 0.05 mg/kg) and carrageenan-induced hyperalgesia assay (ED50 = 38.7 mg/kg) with no indication of gastrointestinal toxicity in rats at doses as high as 200 mg/kg.

DrugBank Data that Cites this Article

Binding Properties

Drug	Target	Property	Measurement	pH	Temperature (°C)
Indomethacin	Prostaglandin G/H synthase 2	IC 50 (nM)	900	N/A	N/A	Details