4-[(4-amino-1,3,5-triazin-2-yl)amino]benzenesulfonamide

4-[3-(3-bromophenyl)-2,5-dioxopyrrolidin-1-yl]benzenesulfonamide

4-[3-(3,5-dibromophenyl)-2,5-dioxopyrrolidin-1-yl]benzenesulfonamide

4-[[4-(dimethylamino)phenyl]methylideneamino]benzenesulfonamide

4-[3-(3,4-dichlorophenyl)-2,5-dioxopyrrolidin-1-yl]benzenesulfonamide