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