5-Cyano-4-(difluoromethyl)-2-(trifluoromethoxy)pyridine-3-methanol
3-Cyano-4-(difluoromethyl)-5-(trifluoromethoxy)pyridine-2-methanol
3-Cyano-2-(difluoromethyl)-6-(trifluoromethoxy)pyridine-5-methanol
3-Cyano-2-(difluoromethyl)-5-(trifluoromethoxy)pyridine-4-methanol