6-[(4-aminophenyl)sulfonylamino]pyridine-3-carboxylic acid

methyl 2-[(4-iodophenyl)amino]-2-oxoacetate

N-Butyl-4-nitrobenzenesulfonamide

N-n-octyl-4-aminobenzenesulfonamide

4-nitro-N-(1-phenylethyl)benzenesulfonamide