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