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