5-Bromo-4-iodo-3-(trifluoromethoxy)pyridine-2-carboxylic acid
2-Bromo-6-(chloromethyl)-3-(trifluoromethoxy)pyridine-5-acetic acid
2-Bromo-4-fluoro-3-(trifluoromethoxy)pyridine-5-acetic acid
3-Bromo-2-iodo-5-(trifluoromethoxy)pyridine-6-carboxylic acid