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