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