Methyl 5-bromo-2-nitro-3-(trifluoromethoxy)pyridine-6-carboxylate
Methyl 4-bromo-2-nitro-6-(trifluoromethoxy)pyridine-3-carboxylate
Methyl 3-bromo-5-nitro-2-(trifluoromethoxy)pyridine-6-carboxylate
3-Bromo-6-nitro-2-(trifluoromethoxy)pyridine-5-acetic acid