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