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