Methyl 3-amino-5-nitro-6-(trifluoromethoxy)pyridine-2-carboxylate
Methyl 3-amino-5-nitro-2-(trifluoromethoxy)pyridine-6-carboxylate
Methyl 3-amino-4-nitro-6-(trifluoromethoxy)pyridine-2-carboxylate
4-Bromo-6-chloro-2-nitro-3-(trifluoromethoxy)pyridine