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