2-Cyano-4-(difluoromethyl)-6-nitropyridine-3-acetonitrile
4-(Bromomethyl)-6-cyano-3-(difluoromethyl)pyridine-2-carboxaldehyde
2-Cyano-4-(difluoromethyl)-3-nitropyridine-6-acetonitrile
Ethyl 2-cyano-5-(difluoromethyl)-6-(trifluoromethyl)pyridine-3-carboxylate