2-Bromo-3-(chloromethyl)-5-hydroxy-4-(trifluoromethoxy)pyridine
6-Bromo-2-chloro-3-(trifluoromethoxy)pyridine-4-sulfonamide
5-Bromo-4-chloro-2-(chloromethyl)-3-(trifluoromethoxy)pyridine
6-Bromo-4-(difluoromethyl)-2-hydroxy-3-(trifluoromethoxy)pyridine