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