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