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