Ethyl 4-chloro-2-(chloromethyl)-3-(difluoromethyl)pyridine-6-acetate
4-(Bromomethyl)-6-cyano-2-(difluoromethyl)-3-iodopyridine
3-Chloro-5-(difluoromethyl)-6-(trifluoromethyl)pyridine-2-carboxylic acid
6-(Bromomethyl)-2-cyano-3-(difluoromethyl)-4-iodopyridine