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