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