Methyl 2-hydroxy-4-nitro-3-(trifluoromethoxy)pyridine-5-carboxylate
3-Hydroxy-6-methoxy-2-(trifluoromethoxy)pyridine-5-sulfonamide
5-Hydroxy-2-methoxy-3-(trifluoromethoxy)pyridine-6-sulfonamide
Methyl 2-hydroxy-3-nitro-5-(trifluoromethoxy)pyridine-6-carboxylate