Ethyl 3-(bromomethyl)-6-cyano-2-(difluoromethyl)pyridine-5-carboxylate
Ethyl 2-(bromomethyl)-6-cyano-5-(difluoromethyl)pyridine-3-carboxylate
3-Cyano-6-(difluoromethyl)-2-methylpyridine-4-acetonitrile
3-Cyano-5-(difluoromethyl)-4-methylpyridine-2-carboxaldehyde