2-Chloro-3-cyano-4-(trifluoromethoxy)pyridine-5-sulfonamide
3-Chloro-6-(difluoromethyl)-2-fluoro-4-(trifluoromethoxy)pyridine
5-Chloro-2-(difluoromethyl)-4-fluoro-3-(trifluoromethoxy)pyridine
6-Bromo-3-(difluoromethyl)-4-(trifluoromethoxy)pyridine-2-acetonitrile