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