2-Bromo-4-(difluoromethyl)-3-(trifluoromethoxy)pyridine-6-acetonitrile
2-Cyano-4-fluoro-3-(trifluoromethoxy)pyridine-6-acetonitrile
3-Chloro-2-(difluoromethyl)-6-methyl-4-(trifluoromethoxy)pyridine
3-Chloro-2-(difluoromethyl)-4-methyl-6-(trifluoromethoxy)pyridine