Ethyl 4-chloro-5-(difluoromethyl)-2-iodopyridine-3-carboxylate
2-Bromo-3-(bromomethyl)-6-(difluoromethyl)pyridine-5-acetic acid
Methyl 4-chloro-5-(difluoromethyl)-2-iodopyridine-3-acetate
2-Bromo-3-(bromomethyl)-5-(difluoromethyl)pyridine-4-acetic acid