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