Ethyl 2-amino-4-hydroxy-3-(trifluoromethoxy)pyridine-5-carboxylate
Ethyl 2-amino-3-hydroxy-5-(trifluoromethoxy)pyridine-6-carboxylate
4-Amino-6-(chloromethyl)-2-(trifluoromethoxy)pyridine-3-carboxylic acid
Ethyl 2-amino-3-hydroxy-4-(trifluoromethoxy)pyridine-5-carboxylate