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