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