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