Methyl 4-(aminomethyl)-3-(difluoromethyl)-5-iodopyridine-2-carboxylate
Ethyl 2-(difluoromethyl)-3-iodo-6-methylpyridine-4-carboxylate
4-(Aminomethyl)-3-(difluoromethyl)-6-iodopyridine-2-acetic acid
6-(Bromomethyl)-3-(difluoromethyl)-4-iodopyridine-2-acetonitrile