Ethyl 5-bromo-4-(bromomethyl)-3-(trifluoromethoxy)pyridine-2-carboxylate
3-Bromo-6-(bromomethyl)-2-(trifluoromethoxy)pyridine-4-acetic acid
3-Bromo-6-(bromomethyl)-4-(trifluoromethoxy)pyridine-2-acetic acid
5-Bromo-2-(bromomethyl)-3-(trifluoromethoxy)pyridine-6-acetic acid