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