3-(Difluoromethyl)-6-hydroxy-2-iodo-4-(trifluoromethoxy)pyridine
5-(Difluoromethyl)-2-hydroxy-4-iodo-3-(trifluoromethoxy)pyridine
4-Fluoro-3-methoxy-2-(trifluoromethoxy)pyridine-6-acetonitrile
4-Hydroxy-3-methyl-2-(trifluoromethoxy)pyridine-6-acetonitrile