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