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