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