Ethyl 2-chloro-5-nitro-3-(trifluoromethoxy)pyridine-6-carboxylate
6-(Aminomethyl)-2-cyano-4-nitro-3-(trifluoromethoxy)pyridine
Ethyl 2-chloro-4-nitro-6-(trifluoromethoxy)pyridine-3-carboxylate
Methyl 4-chloro-3-nitro-6-(trifluoromethoxy)pyridine-2-carboxylate