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