Methyl 2-fluoro-5-hydroxy-6-(trifluoromethoxy)pyridine-3-carboxylate
4-(Bromomethyl)-5-fluoro-2-hydroxy-3-(trifluoromethoxy)pyridine
Methyl 2-fluoro-4-hydroxy-5-(trifluoromethoxy)pyridine-3-carboxylate
3-Fluoro-6-hydroxy-2-(trifluoromethoxy)pyridine-4-carboxylic acid