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