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