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