Methyl 3-(bromomethyl)-5-hydroxy-2-(trifluoromethoxy)pyridine-4-acetate
4-(Chloromethyl)-2-hydroxy-3-methoxy-5-(trifluoromethoxy)pyridine
4-(Difluoromethyl)-5-hydroxy-3-methoxy-2-(trifluoromethoxy)pyridine
6-Hydroxy-3-methoxy-4-(trifluoromethoxy)pyridine-2-carboxaldehyde