2-Fluoro-5-hydroxy-3-(trifluoromethoxy)pyridine-4-methanol
6-Fluoro-4-hydroxy-3-(trifluoromethoxy)pyridine-2-methanol
4-Cyano-3-(difluoromethyl)-5-(trifluoromethoxy)pyridine-2-acetic acid
4-Cyano-6-(difluoromethyl)-2-(trifluoromethoxy)pyridine-3-acetic acid