Protection of lyophilized betalactams from color formation
    1.
    发明授权
    Protection of lyophilized betalactams from color formation 失效
    保护冻干的β-内酰胺从成色

    公开(公告)号:US4418058A

    公开(公告)日:1983-11-29

    申请号:US272895

    申请日:1981-06-12

    摘要: A stable preparation of a lyophilized .beta.-lactam antibacterial containing a 7.beta.-(.alpha.-carboxy-.alpha.-arylacetamido)-7.alpha.-methoxy-3-heterocyclic thiomethyl-1-dethia-1-oxa-3-cephem-4-carboxylic acid (I) alkali metal salt as the antibacterial component and a sugar or sugar alcohol compound as the stabilizing agent. ##STR1## (wherein Ar is a p-hydroxyaryl group andHet is a heterocyclic group optionally substituted by an alkyl group)

    摘要翻译: 含有7β-(α-羧基-α-芳基乙酰氨基)-7α-甲氧基-3-杂环硫代甲基-1-脱硫-1-氧杂-3-头孢烯-4-羧酸的冻干β-内酰胺抗菌剂的稳定制备 酸(I)碱金属盐作为抗菌成分,糖或糖醇化合物作为稳定剂。 (一)