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