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