Methyl 5-amino-3-hydroxy-2-(trifluoromethoxy)pyridine-4-carboxylate
Methyl 3-amino-5-hydroxy-4-(trifluoromethoxy)pyridine-2-carboxylate
4-Amino-2-hydroxy-3-methyl-6-(trifluoromethoxy)pyridine
Methyl 3-amino-4-hydroxy-5-(trifluoromethoxy)pyridine-2-carboxylate