Ethyl 3-(bromomethyl)-6-hydroxy-4-(trifluoromethoxy)pyridine-2-carboxylate
Ethyl 5-(bromomethyl)-2-hydroxy-3-(trifluoromethoxy)pyridine-4-carboxylate
3-Hydroxy-5-methoxy-2-(trifluoromethoxy)pyridine-4-acetonitrile
Ethyl 4-(bromomethyl)-5-hydroxy-3-(trifluoromethoxy)pyridine-2-carboxylate