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