Methyl 2-bromo-4-nitro-3-(trifluoromethoxy)pyridine-5-acetate
Methyl 4-bromo-6-iodo-3-(trifluoromethoxy)pyridine-2-acetate
Methyl 4-bromo-6-methoxy-3-(trifluoromethoxy)pyridine-2-acetate
Methyl 5-bromo-2-hydroxy-4-(trifluoromethoxy)pyridine-3-acetate