Methyl 3-(bromomethyl)-6-methoxy-2-(trifluoromethoxy)pyridine-5-carboxylate
Methyl 3-(bromomethyl)-2-methoxy-4-(trifluoromethoxy)pyridine-5-acetate
Methyl 4-(bromomethyl)-3-methoxy-6-(trifluoromethoxy)pyridine-2-carboxylate
Methyl 6-(bromomethyl)-2-methoxy-4-(trifluoromethoxy)pyridine-3-acetate