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