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