2-Hydroxy-4-iodo-3-(trifluoromethoxy)pyridine-5-acetonitrile
Methyl 4-hydroxy-2-methoxy-3-(trifluoromethoxy)pyridine-5-acetate
Methyl 3-hydroxy-4-methoxy-2-(trifluoromethoxy)pyridine-5-acetate
Methyl 6-hydroxy-2-methoxy-4-(trifluoromethoxy)pyridine-3-acetate