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