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