Ethyl 4-(aminomethyl)-5-cyano-2-(difluoromethyl)pyridine-3-carboxylate
3-Cyano-4-(difluoromethyl)-5-iodopyridine-2-acetic acid
Ethyl 4-(aminomethyl)-2-cyano-3-(difluoromethyl)pyridine-5-carboxylate
Ethyl 4-cyano-6-(difluoromethyl)-2-iodopyridine-3-carboxylate