Ethyl 3-amino-2-cyano-6-(trifluoromethoxy)pyridine-5-carboxylate
Ethyl 2-amino-4-cyano-3-(trifluoromethoxy)pyridine-5-carboxylate
4-Amino-2-cyano-5-(trifluoromethoxy)pyridine-3-carboxylic acid
4-Amino-2-cyano-3-(trifluoromethoxy)pyridine-5-carboxylic acid