3-Cyano-5-nitro-2-(trifluoromethoxy)pyridine-4-sulfonyl chloride
Ethyl 4-(aminomethyl)-3-cyano-2-(trifluoromethoxy)pyridine-5-acetate
6-Cyano-2-nitro-4-(trifluoromethoxy)pyridine-3-sulfonyl chloride
Ethyl 5-(aminomethyl)-3-cyano-4-(trifluoromethoxy)pyridine-2-acetate