Methyl 4-cyano-6-(difluoromethyl)-2-methoxypyridine-3-acetate
2-(Aminomethyl)-6-cyano-5-(difluoromethyl)-3-(trifluoromethyl)pyridine
Methyl 5-cyano-3-(difluoromethyl)-2-methoxypyridine-4-acetate
4-(Aminomethyl)-3-cyano-6-(difluoromethyl)pyridine-2-acetonitrile