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