5-(Chloromethyl)-4-cyano-2-hydroxy-3-(trifluoromethoxy)pyridine
3-(Chloromethyl)-2-cyano-6-hydroxy-5-(trifluoromethoxy)pyridine
5-(Aminomethyl)-2-chloro-3-hydroxy-6-(trifluoromethoxy)pyridine
3-Cyano-5-(difluoromethyl)-6-hydroxy-2-(trifluoromethoxy)pyridine