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