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