Methyl 4-amino-6-(chloromethyl)-3-(difluoromethyl)pyridine-2-acetate
4-Amino-2-(bromomethyl)-6-(difluoromethyl)pyridine-3-acetic acid
Methyl 4-amino-2-(chloromethyl)-3-(difluoromethyl)pyridine-5-acetate
Ethyl 2-amino-6-(bromomethyl)-3-(difluoromethyl)pyridine-4-carboxylate