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