| 摘要 |
<p>.beta.-Lactam antibiotics, processes for their preparation and agents which contain these compounds Antibiotically active penicillins and cephalosporins of the formula in which Z is hydrogen or lower alkoxy, n is 1 or 2, Y, in the form of the free acid, is or X is -S-, -n-, -SO- or -SO2-, T is an organic radical, hydrogen or halogen, Le A 21 714 A is hydroxyl, optionally substituted alkyl, a substituted or unsubstituted phenyl ring, an optionally substituted polycyclic aromatic ring, an optionally substituted 5-membered or 6-membered heterocyclic ring with nitrogen, oxygen and/or sulphur as hetero atoms in the ring, or an optionally substituted polycyclic heterocyclic ring, or non-toxic pharmaceutically tolerated salts thereof. Le A 21 714</p> |
