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