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