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