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