2-Amino-6-(bromomethyl)-5-(difluoromethyl)pyridine-3-carboxaldehyde
2-Amino-6-(aminomethyl)-3-(difluoromethyl)pyridine-4-acetonitrile
2-Amino-5-(bromomethyl)-3-(difluoromethyl)pyridine-6-carboxaldehyde
6-Amino-3-(aminomethyl)-4-(difluoromethyl)pyridine-2-acetonitrile