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
6-Chloro-2-fluoro-4-hydroxy-3-(trifluoromethoxy)pyridine