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