Ethyl 4-hydroxy-3-methoxy-5-(trifluoromethoxy)pyridine-2-carboxylate
Methyl 4-hydroxy-6-methoxy-3-(trifluoromethoxy)pyridine-2-carboxylate
6-Fluoro-2-(fluoromethyl)-3-(trifluoromethoxy)pyridine-4-methanol
Methyl 4-hydroxy-2-methoxy-3-(trifluoromethoxy)pyridine-5-carboxylate