2-Cyano-3-(difluoromethyl)-5-fluoro-6-(trifluoromethoxy)pyridine
6-Chloro-4-(difluoromethyl)-2-(trifluoromethoxy)pyridine-3-acetic acid
4-Cyano-5-fluoro-3-(fluoromethyl)-2-(trifluoromethoxy)pyridine
4-Cyano-3-fluoro-2-(fluoromethyl)-5-(trifluoromethoxy)pyridine