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