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