2-Cyano-3-(fluoromethyl)-4-methyl-6-(trifluoromethoxy)pyridine
4-(Chloromethyl)-3-cyano-6-methyl-2-(trifluoromethoxy)pyridine
4-Cyano-5-(difluoromethyl)-3-methyl-2-(trifluoromethoxy)pyridine
3-Cyano-5-(difluoromethyl)-2-methyl-4-(trifluoromethoxy)pyridine