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