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