4-(Bromomethyl)-6-cyano-2-(trifluoromethoxy)pyridine-3-methanol
4-(Bromomethyl)-2-cyano-5-(trifluoromethoxy)pyridine-3-methanol
4-Cyano-2-(fluoromethyl)-3-(trifluoromethoxy)-5-(trifluoromethyl)pyridine
5-Cyano-3-(fluoromethyl)-4-(trifluoromethoxy)-2-(trifluoromethyl)pyridine