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