Synthesis and biological evaluation of 2-(4-methylsulfonyl phenyl) indole derivatives: Multi-target compounds with dual antimicrobial and anti-inflammatory activities

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Ahmed M. M. ShakerHamdy M. Abdel-Rahman

Abstract

Three series of 2-(4-methylsulfonylphenyl) indole derivatives have been designed and synthesized. The synthesized compounds were evaluated for their antimicrobial, COX inhibitory and anti-inflammatory activities. Compound 7g was identified to be the most potent antibacterial candidate against strains of MRSA , E. coli, K. pneumoniae, P. aeruginosa, and A. baumannii , respectively with safe therapeutic dose. Compounds 7a-k, 8a-c and 9a-c showed good anti-inflammatory activity with high selectivity toward COX-2 in comparison with reference drugs indomethacin and celecoxib. Compounds 9a-c were found to release moderate amounts of NO to decrease the side effects associated with selective COX-2 inhibitors. A molecular modeling study for compounds 7b, 7h, and 7i into COX-2 active site correlated with results of in vitro COX-2 inhibition assays.

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