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