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