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