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