4-(Chloromethyl)-3-(difluoromethyl)-5-iodo-2-(trifluoromethyl)pyridine
5-(Bromomethyl)-4-(difluoromethyl)-3-iodopyridine-2-carboxylic acid
4-(Chloromethyl)-2-(difluoromethyl)-6-iodo-3-(trifluoromethyl)pyridine
3-(Bromomethyl)-4-(difluoromethyl)-2-iodopyridine-6-carboxylic acid