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