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