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Molecules 2012, 17(2), 1751-1763; doi:10.3390/molecules17021751
Article

Design, Synthesis and Preliminary Pharmacological Evaluation of New Non-Steroidal Anti-Inflammatory Agents Having a 4-(Methylsulfonyl) Aniline Pharmacophore

1,* , 1 and 2
Received: 30 December 2011; in revised form: 20 January 2012 / Accepted: 20 January 2012 / Published: 10 February 2012
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Abstract: A series of 4-(methylsulfonyl)aniline derivatives were synthesized in order to obtain new compounds as a potential anti-inflammatory agents with expected selectivity against COX-2 enzyme. In vivo acute anti-inflammatory activity of the final compounds 1114 was evaluated in rat using an egg-white induced edema model of inflammation in a dose equivalent to 3 mg/Kg of diclofenac sodium. All tested compounds produced significant reduction of paw edema with respect to the effect of propylene glycol 50% v/v (control group). Moreover, the activity of compounds 11 and 14 was significantly higher than that of diclofenac sodium (at 3 mg/Kg) in the 120–300 minute time interval, while compound 12 expressed a comparable effect to that of diclofenac sodium in the 60–240 minute time interval time, and compound 13 showed a comparable effect to that of diclofenac sodium at all experimental times. The result of this study indicates that the incorporation of the 4-(methylsulfonyl)aniline pharamacophore into naproxen, indomethacine, diclofenac and mefanamic acid maintained their anti-inflammatory activity and may increase selectivity towards the COX-2 enzyme which will be confirmed in the future by assessing COX-2: COX-1 inhibitory ratios using a whole blood assay.
Keywords: anti-inflammatory; paw edema; NSAIDs; naproxen; indomethacin; mefanamic acid; diclofenac anti-inflammatory; paw edema; NSAIDs; naproxen; indomethacin; mefanamic acid; diclofenac
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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MDPI and ACS Style

Mahdi, M.F.; Mohammed, M.H.; Jassim, A.A.K. Design, Synthesis and Preliminary Pharmacological Evaluation of New Non-Steroidal Anti-Inflammatory Agents Having a 4-(Methylsulfonyl) Aniline Pharmacophore. Molecules 2012, 17, 1751-1763.

AMA Style

Mahdi MF, Mohammed MH, Jassim AAK. Design, Synthesis and Preliminary Pharmacological Evaluation of New Non-Steroidal Anti-Inflammatory Agents Having a 4-(Methylsulfonyl) Aniline Pharmacophore. Molecules. 2012; 17(2):1751-1763.

Chicago/Turabian Style

Mahdi, Monther Faisel; Mohammed, Mohamed Hassan; Jassim, Akeel Abdul Kadhum. 2012. "Design, Synthesis and Preliminary Pharmacological Evaluation of New Non-Steroidal Anti-Inflammatory Agents Having a 4-(Methylsulfonyl) Aniline Pharmacophore." Molecules 17, no. 2: 1751-1763.



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