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