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