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