2-Chloro-4-(difluoromethyl)-5-fluoropyridine-3-carboxaldehyde
6-Chloro-4-cyano-2-(difluoromethyl)pyridine-3-carbonyl chloride
6-Chloro-4-cyano-3-(difluoromethyl)pyridine-2-carbonyl chloride
2-Chloro-4-cyano-3-(difluoromethyl)pyridine-6-carbonyl chloride