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