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