4-Amino-5-(difluoromethyl)-2-nitropyridine-3-acetonitrile
Methyl 3-amino-2-(chloromethyl)-6-(difluoromethyl)pyridine-5-carboxylate
3-Amino-4-(difluoromethyl)-5-nitropyridine-2-acetonitrile
Methyl 2-amino-3-(aminomethyl)-6-(difluoromethyl)pyridine-4-acetate