2-Cyano-3-hydroxy-6-(trifluoromethoxy)pyridine-4-acetonitrile
2-Cyano-3-hydroxy-4-(trifluoromethoxy)pyridine-6-acetonitrile
Ethyl 4-chloro-3-methyl-2-(trifluoromethoxy)pyridine-6-carboxylate
Ethyl 6-cyano-4-hydroxy-3-(trifluoromethoxy)pyridine-2-carboxylate