2-(Chloromethyl)-3-(difluoromethyl)-4-(trifluoromethoxy)pyridine-5-acetic acid
3-(Chloromethyl)-5-(difluoromethyl)-2-(trifluoromethoxy)pyridine-6-carbonyl chloride
5-Cyano-2-(difluoromethyl)pyridine-4-sulfonyl chloride
4-Cyano-2-(difluoromethyl)-5-methoxypyridine