Sulfonamide derivatives of 4-aminophenazone (4APZ) were synthesized and accordingly characterized by spectroscopic techniques. These newly synthesized compounds were examined for their biological activities such as enzyme inhibition, analgesic, antibacterial, antioxidant and DNA interaction. A direct correlation between enzyme inhibition activity and concentration of the compounds was observed both by experimental and molecular docking studies. Analgesic activity of the compounds was investigated by formalin-induced paw licking (FIPL), acetic acid-induced writhing (AIW) and heat conduction methods in mice. Membrane stabilization effect was determined by hypotonicity-induced hemolysis. Bacterial strains, S. aureus, S. epidermidis, B. subtilis, E. coli, P. aeruginosa, S. mutans and A. odontolyticus were used for investigating the antibacterial potential of the compounds. Antioxidant potential was investigated by Ferric Reducing Antioxidant Power assay (FRAP) and DPPH free radical scavenging method. DNA interaction studies of the synthesized compounds showed weak interaction. Hyperchromic effect was observed along the series and large positive K values were obtained for most of the compounds.
Muhammad Shoaib Akhtar, Asmara Ismail, Shahzad Murtaza, Muhammad Nawaz Tahir, Saima Shamim and Usman Ali Rana
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