4-(Chloromethyl)-2-(perchlorophenyl)-3-(trifluoromethyl)pyridine
3-(Chloromethyl)-6-(perchlorophenyl)-2-(trifluoromethyl)pyridine
3-(Chloromethyl)-2-(perchlorophenyl)-5-(trifluoromethyl)pyridine
3-(Chloromethyl)-2-(perchlorophenyl)-4-(trifluoromethyl)pyridine