Abstract Three β-amino-dicarboxylic acids were prepared by reduction of the corresponding ethyl β-oxo-dicarboxylate acetylhydrazones. The melting point and the tuberculostatic activity of β-amino-pimelic acid are not in accordance with the data found by Romeo for a compound obtained by hydrogenation of p-amino-salicylic acid, which seemed to be β- amino-pimelic acid.
