Abstract
Fresh sequences of pyrrole linked N'-phenyl-4-pyrrolyl-benzenesulfonamide derivatives were synthesized by different synthetic methods. Synthesis of the N'-phenyl-4-(1H-pyrrol-1-yl) benzenesulfonamides 5(a-e)/4-(2,5-dimethyl-1H-pyrrol-1-yl)-N'-phenylbenzenesulfonamides 6(a-e) was achieved by refluxing 2,5-dimethoxytetrahydrofuran/hexane 2,5-dione separately in presence of acetic acid. Further, synthesis of N-(4(N'-phenylsulfamoyl)phenyl)-4-(1H-pyrrol-1-yl)benzamides 8(a-b)/4-(2,5-dimethyl-1H-pyrrol-1-yl)-N-(4-(N'-phenylsulfamoyl)phenyl)benzamides 10(a-b) was achieved by cold stirring of 4-(1H-pyrrol-1-yl)benzoic acid (7)/2,5-dimethyl-1H-pyrrol-1-yl)benzoic acid (9) correspondingly in the presence of 2-(1H-benzotriazol-1-yl)-1,1,3,3-tetramethyluronium hexafluorophosphate, N', N'-diisopropylethylamine, and Dimethylfonnamide. In vitro anti-tubercular study of afresh compounds has shown good minimum inhibitory concentration values (0.4-12.5 mu g/mL) counter to Mycobacterium tuberculosis H(37)Rv, while the corresponding study of reported molecules for antibacterial activity disclosed considerable inhibition values (0.4-25 mu g/mL) counter to Escherichia cols (Gram-vc) than Staphylococcus aureus (Gram +ve).