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