| 摘要 |
beta -Lactam compounds of the formula <IMAGE> in which T is hydrogen, alkyl-CO-O-, pyridinium, 4-carbamoylpyridinium, aminopyridinium, carbamoyloxy, azido, cyano, hydroxyl, the group -S-phenyl which can be substituted, or the group -S-Het in which Het is an optionally substituted heterocyclic 5- or 6-membered ring; are used as medicaments, especially as antibacterial agents and as agents for promoting growth and for improving feed conversion in livestock. |
