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