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