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