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