3-Hydroxy-6-nitro-4-(trifluoromethoxy)pyridine-2-sulfonamide
2-(Aminomethyl)-6-hydroxy-3-(trifluoromethoxy)pyridine-4-acetonitrile
4-Hydroxy-2-nitro-3-(trifluoromethoxy)pyridine-5-sulfonamide
Ethyl 2-fluoro-5-(fluoromethyl)-6-(trifluoromethoxy)pyridine-3-acetate