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