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