Methyl 4-(bromomethyl)-5-methoxy-2-(trifluoromethoxy)pyridine-3-acetate
Methyl 4-(bromomethyl)-3-methoxy-5-(trifluoromethoxy)pyridine-2-acetate
Methyl 4-(bromomethyl)-2-hydroxy-5-(trifluoromethoxy)pyridine-3-carboxylate
Methyl 5-(bromomethyl)-3-hydroxy-2-(trifluoromethoxy)pyridine-4-carboxylate