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