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