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