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