4-Amino-3-nitro-2-(trifluoromethoxy)pyridine-6-carboxaldehyde
Ethyl 6-bromo-4-chloro-2-(trifluoromethoxy)pyridine-3-carboxylate
4-Amino-2-nitro-6-(trifluoromethoxy)pyridine-3-carboxaldehyde
Ethyl 2-bromo-4-chloro-5-(trifluoromethoxy)pyridine-3-carboxylate