6-Chloro-3-cyano-4-(difluoromethyl)pyridine-2-carboxaldehyde
Methyl 3-chloro-4-cyano-2-(difluoromethyl)pyridine-5-carboxylate
Methyl 6-chloro-4-cyano-3-(difluoromethyl)pyridine-2-carboxylate
4-Chloro-5-cyano-3-(difluoromethyl)pyridine-2-carboxylic acid