4-(Chloromethyl)-5-(trifluoromethoxy)-2-(trifluoromethyl)pyridine-3-sulfonamide
3-(Chloromethyl)-4-(trifluoromethoxy)-5-(trifluoromethyl)pyridine-2-sulfonamide
3-Cyano-2-(difluoromethyl)pyridine-6-sulfonamide
2-(Chloromethyl)-5-(trifluoromethoxy)-4-(trifluoromethyl)pyridine-3-sulfonamide