Ethyl 3-(aminomethyl)-4-cyano-5-(difluoromethyl)pyridine-2-acetate
Methyl 4-cyano-6-(difluoromethyl)-2-methylpyridine-3-acetate
Methyl 6-cyano-2-(difluoromethyl)-3-methylpyridine-4-acetate
Ethyl 6-(aminomethyl)-4-cyano-2-(difluoromethyl)pyridine-3-acetate