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