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