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