2-(Bromomethyl)-3-fluoro-4-hydroxy-5-(trifluoromethoxy)pyridine
3-(Aminomethyl)-6-fluoro-4-hydroxy-2-(trifluoromethoxy)pyridine
5-(Aminomethyl)-2-fluoro-3-hydroxy-4-(trifluoromethoxy)pyridine
5-Cyano-2-(difluoromethyl)-3-hydroxy-6-(trifluoromethoxy)pyridine