2-(Difluoromethyl)-5-fluoro-3-methyl-4-(trifluoromethoxy)pyridine
4-Cyano-2-(difluoromethyl)-6-(trifluoromethoxy)pyridine-3-acetonitrile
6-(Difluoromethyl)-4-fluoro-3-methyl-2-(trifluoromethoxy)pyridine
4-Cyano-2-(difluoromethyl)-3-(trifluoromethoxy)pyridine-6-acetonitrile