Methyl 2-chloro-4-cyano-5-(difluoromethyl)pyridine-3-acetate
2-(Aminomethyl)-3-bromo-4-(difluoromethyl)pyridine-6-acetonitrile
3-Chloro-5-cyano-2-(difluoromethyl)pyridine-4-carbonyl chloride
3-(Aminomethyl)-6-bromo-2-(difluoromethyl)-4-(trifluoromethyl)pyridine