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