5-Cyano-4-iodo-3-(trifluoromethoxy)pyridine-2-carboxylic acid
Ethyl 4-cyano-6-nitro-2-(trifluoromethoxy)pyridine-3-carboxylate
3-Cyano-4-iodo-2-(trifluoromethoxy)pyridine-5-carboxylic acid
Ethyl 4-cyano-2-nitro-5-(trifluoromethoxy)pyridine-3-carboxylate