Synthesis and preliminary pharmacological evaluation of aminobenzensulfonamides derivatives of diflunisal as a anti-inflammatory agents

F. Mahdi, Munther; Wars, Abdul-Rassoul; Fingan, Samira

doi:10.33899/iphr.2008.50094

	Synthesis and preliminary pharmacological evaluation of aminobenzensulfonamides derivatives of diflunisal as a anti-inflammatory agents
Iraqi Journal of Pharmacy
Article 1, Volume 7, Issue 1, 2008, Pages 42-49 PDF (0 K)
DOI: 10.33899/iphr.2008.50094
Authors
Munther F. mahdi; Abdul-Rassoul Wars; Samira Fingan
Abstract
Objective: Synthesized of amino derivatives [4-aminobenzenesulfonamide, 4-amino-N-methylbenzenesulfonamide, or N-(4-aminophenylsulfonyl) acetamide] bound to carboxyl group of diflunisal, a well known nonsteroidal anti-inflammatory drugs (NSAIDs). and evaluation as a potential anti-inflammatory agent with expected selectivity against COX-2 enzyme. Design: Expermental study Results: In vivo acute anti-inflammatory activity of the final compounds (13, 14 & 15) was evaluated in rat using egg-white induced edema model of inflammation in a dose equivalent to (50mg/Kg) of diflunisal. All tested compounds produced significant reduction of paw edema with respect to the effect of propylene glycol 50% v/v (control group). Moreover, compound (14) exhibited comparable anti-inflammatory activity to diclofenac (3mg/Kg), while compound (13) showed short duration of action, and compound (15) exhibited comparable effect to that of diclofenac with slower onset of action. Conclusion:The result of this study indicate that the incorporation of the 4-aminobenzenesulfonamide pharamacophore & its derivatives into diflunisal enhanced its anti-inflammatory activity& may increased its selectivity toward COX-2 enzyme which can be confirmed in future by assessing COX-2:COX-1 inhibitory ratio using whole blood assay.

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