4-(Bromomethyl)-3-chloro-6-(trifluoromethoxy)pyridine-2-carboxylic acid
4-(Bromomethyl)-3-chloro-5-(trifluoromethoxy)pyridine-2-carboxylic acid
4-(Bromomethyl)-3-chloro-2-(trifluoromethoxy)pyridine-5-carboxylic acid
4-(Bromomethyl)-2-chloro-6-(trifluoromethoxy)pyridine-3-carboxylic acid