Ethyl 5-amino-3-chloro-4-(difluoromethyl)pyridine-2-carboxylate
Ethyl 3-amino-5-chloro-2-(difluoromethyl)pyridine-4-carboxylate
4-Amino-3-chloro-5-(difluoromethyl)pyridine-2-acetonitrile
Ethyl 5-amino-4-chloro-3-(difluoromethyl)pyridine-2-carboxylate