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