2-Bromo-4-(bromomethyl)-5-hydroxy-3-(trifluoromethoxy)pyridine
4-Bromo-3-(bromomethyl)-2-methoxy-5-(trifluoromethoxy)pyridine
4-Bromo-2-(bromomethyl)-6-methoxy-3-(trifluoromethoxy)pyridine
4-Bromo-2-(bromomethyl)-5-methoxy-3-(trifluoromethoxy)pyridine