5-(Chloromethyl)-2-(difluoromethyl)-4-iodopyridine
3-(Bromomethyl)-2-(difluoromethyl)-5-(trifluoromethoxy)pyridine-4-sulfonyl chloride
4-(Chloromethyl)-3-(difluoromethyl)-5-iodopyridine
4-(Bromomethyl)-2-(difluoromethyl)-5-(trifluoromethoxy)pyridine-3-carbonyl chloride