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