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