Methyl 5-cyano-2-hydroxy-3-(trifluoromethoxy)pyridine-4-acetate
2-(Bromomethyl)-4-fluoro-3-(trifluoromethoxy)pyridine-5-carboxylic acid
Methyl 4-cyano-5-hydroxy-3-(trifluoromethoxy)pyridine-2-acetate
2-Cyano-3-hydroxy-6-(trifluoromethoxy)pyridine-5-methanol