4-(Bromomethyl)-2-(difluoromethyl)-6-methoxypyridine
3-(Chloromethyl)-4-(difluoromethyl)-2-(trifluoromethoxy)pyridine-6-carbonyl chloride
2-(Aminomethyl)-5-(difluoromethyl)-3-iodopyridine
3-(Chloromethyl)-2-(difluoromethyl)-6-(trifluoromethoxy)pyridine-4-carbonyl chloride