4-Bromo-3-(chloromethyl)-6-(trifluoromethoxy)pyridine-2-acetic acid
2-Bromo-5-(fluoromethyl)-3-(trifluoromethoxy)pyridine-6-acetic acid
6-Bromo-2-methyl-4-(trifluoromethoxy)pyridine-3-methanol
4-Bromo-3-(chloromethyl)-2-(trifluoromethoxy)pyridine-6-acetic acid