In vivo Anti Inflammation Studies of Novel 1, 2, 5 Oxadiazole Sulfonamide Hybrids
In vivo Anti Inflammation Studies of Novel 1, 2, 5 Oxadiazole Sulfonamide Hybrids
Hafiz Adnan Ahmad1,2*, Muhammad Aslam2, Salman Gul2, Tariq Mehmood2 and Munawar Ali Munawar2
ABSTRACT
In present study we designed and synthesized a novel series of 1,2,5-oxadiazole-sulfonamide hybrids (4a-4j) in search of more potent anti-inflammatory agents. Title compounds were synthesized by chlorosulfonation of 3,4-diphenyl-1,2,5-oxadiazole (3) followed by condensation with amines and all derivatives were obtained in moderate to good yield. All synthesized hybrids were characterized with spectroscopic techniques and further evaluated for anti-inflammatory potential. The synthesized hybrids were screened in vivo by employing carrageenan-induced paw edema method at 10 mg/kg dose. Among all derivatives, two compounds 4g and 4b displayed better anti-inflammation potential than standard drugs celecoxib and indomethacin. While the anti-inflammation profile of compounds 4h, 4e and 4f during in vivo screening was also comparable to celecoxib and indomethacin. The structure-activity relationship (SAR) was also discussed with the reference of substituent nature. Present results showed that newly synthesized hybrids have significant anti-inflammatory potential and might be played an important role to the development of more potent anti-inflammation agents in future.
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