Ethyl 3-fluoro-4-iodo-6-(trifluoromethoxy)pyridine-2-carboxylate
Ethyl 3-fluoro-2-iodo-6-(trifluoromethoxy)pyridine-4-carboxylate
Ethyl 6-fluoro-3-iodo-2-(trifluoromethoxy)pyridine-4-carboxylate
Ethyl 2-fluoro-3-iodo-6-(trifluoromethoxy)pyridine-4-carboxylate