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