Methyl 2-bromo-6-(chloromethyl)-3-(trifluoromethoxy)pyridine-5-carboxylate
4-Bromo-2-(chloromethyl)-3-(trifluoromethoxy)pyridine-6-acetic acid
3-Bromo-2-(chloromethyl)-4-(trifluoromethoxy)pyridine-6-acetic acid
2-Bromo-4-(chloromethyl)-3-(trifluoromethoxy)pyridine-6-acetic acid