4-Hydroxy-6-methyl-3-(trifluoromethoxy)pyridine-2-sulfonamide
5-Hydroxy-3-methyl-4-(trifluoromethoxy)pyridine-2-sulfonamide
5-Hydroxy-4-methyl-3-(trifluoromethoxy)pyridine-2-sulfonamide
Ethyl 4-(fluoromethyl)-2-hydroxy-5-(trifluoromethoxy)pyridine-3-acetate