Ethyl 2-(chloromethyl)-5-(difluoromethyl)-6-(trifluoromethoxy)pyridine-3-acetate
Ethyl 2-(chloromethyl)-5-(difluoromethyl)-4-(trifluoromethoxy)pyridine-3-acetate
Methyl 3-(difluoromethyl)-4-iodopyridine-2-acetate
Methyl 3-(difluoromethyl)-2-iodopyridine-4-acetate