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