2-Amino-4-(chloromethyl)-3-(difluoromethyl)pyridine-6-carboxylic acid
Ethyl 2-amino-5-(bromomethyl)-4-(difluoromethyl)pyridine-3-carboxylate
Ethyl 3-amino-2-(chloromethyl)-6-(difluoromethyl)pyridine-4-carboxylate
Ethyl 2-amino-4-(bromomethyl)-5-(difluoromethyl)pyridine-3-carboxylate