2-Hydroxy-6-methoxy-3-(trifluoromethoxy)pyridine-5-acetonitrile
6-(Bromomethyl)-4-hydroxy-2-(trifluoromethoxy)pyridine-3-acetic acid
2-Hydroxy-3-methoxy-6-(trifluoromethoxy)pyridine-4-acetonitrile
2-Hydroxy-3-methoxy-4-(trifluoromethoxy)pyridine-6-acetonitrile