Ethyl 4-(aminomethyl)-6-cyano-3-(difluoromethyl)pyridine-2-acetate
2-Cyano-5-(difluoromethyl)-6-nitropyridine-3-acetonitrile
Ethyl 3-(aminomethyl)-5-cyano-2-(difluoromethyl)pyridine-4-acetate
6-Cyano-2-(difluoromethyl)-3-nitropyridine-4-carboxaldehyde