5-Cyano-2-(difluoromethyl)-4-methyl-3-(trifluoromethoxy)pyridine
5-Chloro-2-(difluoromethyl)-4-(trifluoromethoxy)pyridine-3-acetonitrile
4-Cyano-5-methyl-3-(trifluoromethoxy)pyridine-2-acetic acid
4-Cyano-3-(difluoromethyl)-5-methyl-2-(trifluoromethoxy)pyridine