Ethyl 3-(bromomethyl)-5-hydroxy-6-(trifluoromethoxy)pyridine-2-carboxylate
Methyl 6-(bromomethyl)-2-fluoro-4-(trifluoromethoxy)pyridine-3-acetate
2-(Fluoromethyl)-5-hydroxy-6-methoxy-3-(trifluoromethoxy)pyridine
Methyl 2-(bromomethyl)-6-fluoro-3-(trifluoromethoxy)pyridine-4-acetate