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