4-(Bromomethyl)-2-cyano-3-(difluoromethyl)pyridine-6-carboxaldehyde
6-(Bromomethyl)-3-cyano-2-(difluoromethyl)pyridine-4-carboxaldehyde
Methyl 2-(bromomethyl)-6-cyano-5-(difluoromethyl)pyridine-3-carboxylate
Methyl 6-(bromomethyl)-3-cyano-2-(difluoromethyl)pyridine-4-carboxylate