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