6-(Aminomethyl)-2-fluoro-4-hydroxy-3-(trifluoromethoxy)pyridine
4-(Chloromethyl)-3-fluoro-2-hydroxy-5-(trifluoromethoxy)pyridine
4-(Chloromethyl)-6-fluoro-3-hydroxy-2-(trifluoromethoxy)pyridine
3-Cyano-6-(difluoromethyl)-4-(trifluoromethoxy)pyridine-2-carboxylic acid