Optically active beta-lactams and method of their production.

摘要

Optically active β-lactams of the general formula
<Chemistry id="chema01" num="0001"><Image id="ia01" he="22" wi="82" file="IMGA0001.TIF" imgContent="chem" imgFormat="TIFF" inline="no" /></Chemistry>wherein R<Sup>1</Sup> is an amino or protected amino group, R<Sup>2</Sup> is an organic residue bonding through a carbon atom thereof and R<Sup>3</Sup> is the residue remaining after removal of the a-amino group from an optically active a-amino acid or a derivative thereof as well as a method of producing the same.