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