2-(aminocarbonyl)-5-chloro-4-sulfamoylbenzaldehyde
7-Chloro-4-oxo-3-(3-trifluoromethyl-phenyl)-1,2,3,4-tetrahydro-phthalazine-6-sulfonic acid amide
6-chloro-7-sulfamoyl-2-
3-Benzyl-7-chloro-4-oxo-1,2,3,4-tetrahydro-phthalazine-6-sulfonic acid amide
2-benzyl-6-chloro-7-sulfamoyl-1(2H)-phthalazinone