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