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