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