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