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