2-Amino-3-(difluoromethyl)-5-nitropyridine-4-carboxaldehyde
Methyl 3-amino-5-(bromomethyl)-4-(difluoromethyl)pyridine-2-acetate
Methyl 5-amino-4-(bromomethyl)-2-(difluoromethyl)pyridine-3-acetate
Methyl 3-amino-2-(difluoromethyl)-6-nitropyridine-4-carboxylate