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