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