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