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