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