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