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