2-(Bromomethyl)-4-chloro-6-(difluoromethyl)pyridine-3-carboxylic acid
Ethyl 4-chloro-3-(difluoromethyl)-2-iodopyridine-5-carboxylate
Ethyl 3-chloro-5-(difluoromethyl)-2-iodopyridine-4-carboxylate
Ethyl 3-chloro-4-(difluoromethyl)-2-iodopyridine-5-carboxylate