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