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