Ethyl 5-hydroxy-3-iodo-2-(trifluoromethoxy)pyridine-4-acetate
Methyl 3-cyano-4-(difluoromethyl)-6-(trifluoromethoxy)pyridine-2-acetate
Ethyl 3-hydroxy-5-iodo-4-(trifluoromethoxy)pyridine-2-acetate
Methyl 3-cyano-4-(difluoromethyl)-2-(trifluoromethoxy)pyridine-6-acetate