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