3-Chloro-4-(chloromethyl)-2-hydroxy-6-(trifluoromethoxy)pyridine
5-(Aminomethyl)-2-cyano-4-hydroxy-3-(trifluoromethoxy)pyridine
4-Chloro-2-methyl-6-(trifluoromethoxy)pyridine-3-acetonitrile
3-Cyano-2-hydroxy-4-(trifluoromethoxy)pyridine-5-acetonitrile