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