4-Hydroxy-3-nitro-2-(trifluoromethoxy)pyridine-5-acetonitrile
2-(Bromomethyl)-4-hydroxy-3-(trifluoromethoxy)pyridine-6-acetic acid
Methyl 4-(bromomethyl)-3-fluoro-2-(trifluoromethoxy)pyridine-5-acetate
4-Hydroxy-6-nitro-3-(trifluoromethoxy)pyridine-2-acetonitrile