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