3-(Fluoromethyl)-5-hydroxy-4-(trifluoromethoxy)pyridine-2-acetonitrile
3-(Difluoromethyl)-6-iodo-2-methyl-4-(trifluoromethoxy)pyridine
5-(Fluoromethyl)-4-hydroxy-2-(trifluoromethoxy)pyridine-3-acetonitrile
3-(Fluoromethyl)-4-hydroxy-5-(trifluoromethoxy)pyridine-2-acetonitrile