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