Ethyl 3-fluoro-4-hydroxy-6-(trifluoromethoxy)pyridine-2-carboxylate
Methyl 6-(aminomethyl)-4-cyano-2-(trifluoromethoxy)pyridine-3-carboxylate
Ethyl 3-fluoro-4-hydroxy-2-(trifluoromethoxy)pyridine-6-carboxylate
Methyl 2-(aminomethyl)-4-cyano-5-(trifluoromethoxy)pyridine-3-carboxylate