Methyl 6-chloro-4-cyano-2-(difluoromethyl)pyridine-3-carboxylate
5-(Aminomethyl)-2-chloro-3-(difluoromethyl)-4-fluoropyridine
Methyl 2-chloro-4-cyano-3-(difluoromethyl)pyridine-6-carboxylate
4-(Aminomethyl)-3-chloro-6-(difluoromethyl)-2-fluoropyridine