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