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