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