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