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