Ethyl 6-hydroxy-2-iodo-3-(trifluoromethoxy)pyridine-4-carboxylate
Ethyl 4-hydroxy-3-iodo-2-(trifluoromethoxy)pyridine-5-acetate
Ethyl 2-hydroxy-6-iodo-4-(trifluoromethoxy)pyridine-3-carboxylate
Ethyl 4-hydroxy-6-iodo-3-(trifluoromethoxy)pyridine-2-acetate