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