5-(Chloromethyl)-3-cyano-4-(difluoromethyl)-2-(trifluoromethoxy)pyridine
6-Bromo-4-(difluoromethyl)-2-methoxypyridine-3-carbonyl chloride
5-Chloro-2-(chloromethyl)-3-(difluoromethyl)-6-methylpyridine
2-(Chloromethyl)-3-iodo-5-(trifluoromethoxy)pyridine-6-acetic acid