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