3-Cyano-4-hydroxy-6-(trifluoromethoxy)pyridine-2-carboxylic acid
5-Cyano-2-(difluoromethyl)-3-methyl-4-(trifluoromethoxy)pyridine
Methyl 4-chloro-3-hydroxy-2-(trifluoromethoxy)pyridine-6-carboxylate
Ethyl 4-cyano-2-hydroxy-6-(trifluoromethoxy)pyridine-3-acetate