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