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