Methyl 2-amino-3-(aminomethyl)-4-(difluoromethyl)pyridine-6-acetate
5-Bromo-4-nitro-2-(trifluoromethylthio)pyridine
Methyl 3-(aminomethyl)-2-cyano-4-(difluoromethyl)pyridine-6-acetate
Ethyl 2-(bromomethyl)-5-chloro-3-(trifluoromethoxy)pyridine-4-carboxylate