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