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