Methyl 3-(aminomethyl)-6-chloro-4-(difluoromethyl)pyridine-2-carboxylate
Methyl 5-(aminomethyl)-4-chloro-3-(difluoromethyl)pyridine-2-carboxylate
4-(Aminomethyl)-6-chloro-2-(difluoromethyl)-3-iodopyridine
4-(Aminomethyl)-2-chloro-5-(difluoromethyl)-3-iodopyridine