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