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