Ethyl 2-cyano-6-hydroxy-3-(trifluoromethoxy)pyridine-4-acetate
4-Chloro-2-cyano-5-(trifluoromethoxy)pyridine-3-carboxylic acid
Ethyl 6-cyano-3-hydroxy-4-(trifluoromethoxy)pyridine-2-acetate
2-Chloro-6-(fluoromethyl)-3-(trifluoromethoxy)pyridine-5-acetonitrile