5-(Chloromethyl)-3-(difluoromethyl)-4-(trifluoromethoxy)pyridine-2-carbonyl chloride
2-(Chloromethyl)-6-cyano-4-(difluoromethyl)pyridine
3-(Chloromethyl)-5-(difluoromethyl)-2-(trifluoromethoxy)pyridine-4-carbonyl chloride
4-(Bromomethyl)-3-(difluoromethyl)pyridine-2-carboxylic acid