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