Ethyl 2-chloro-4-iodo-6-(trifluoromethoxy)pyridine-3-carboxylate
Ethyl 2-chloro-3-iodo-6-(trifluoromethoxy)pyridine-4-carboxylate
Methyl 5-chloro-2-iodo-3-(trifluoromethoxy)pyridine-6-carboxylate
Methyl 4-chloro-2-iodo-6-(trifluoromethoxy)pyridine-3-carboxylate