Methyl 4-cyano-2-(difluoromethyl)-3-iodopyridine-6-acetate
2-(Bromomethyl)-6-cyano-3-(difluoromethyl)-5-(trifluoromethyl)pyridine
Methyl 3-cyano-4-(difluoromethyl)-2-iodopyridine-6-acetate
Ethyl 3-(aminomethyl)-5-cyano-2-(difluoromethyl)pyridine-6-acetate