Ethyl 4-chloro-3-(chloromethyl)-2-(trifluoromethoxy)pyridine-5-carboxylate
Methyl 4-cyano-2-hydroxy-5-(trifluoromethoxy)pyridine-3-carboxylate
4-Chloro-5-cyano-3-(trifluoromethoxy)pyridine-2-methanol
Methyl 5-cyano-3-hydroxy-2-(trifluoromethoxy)pyridine-4-carboxylate