Methyl 2-cyano-4-(difluoromethyl)-5-methoxypyridine-3-acetate
4-Cyano-2-(difluoromethyl)-5-methoxypyridine-3-acetic acid
4-(Bromomethyl)-2-cyano-3-(difluoromethyl)pyridine-6-carboxaldehyde
6-(Bromomethyl)-3-cyano-2-(difluoromethyl)pyridine-4-carboxaldehyde