Ethyl 4-(chloromethyl)-6-hydroxy-3-(trifluoromethoxy)pyridine-2-carboxylate
Methyl 2-(chloromethyl)-6-hydroxy-3-(trifluoromethoxy)pyridine-5-carboxylate
6-Iodo-2-methyl-3-(trifluoromethoxy)pyridine-4-carboxylic acid
Ethyl 4-(chloromethyl)-2-hydroxy-3-(trifluoromethoxy)pyridine-5-carboxylate