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