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