3-(Difluoromethyl)-6-(fluoromethyl)-2-iodopyridine
4-(Difluoromethyl)-5-(fluoromethyl)-2-iodopyridine
2-(Chloromethyl)-3-(trifluoromethoxy)-4-(trifluoromethyl)pyridine-5-sulfonyl chloride
6-(Chloromethyl)-2-(difluoromethyl)-3-(trifluoromethyl)pyridine