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