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