Beta-Lactam Derivatives
    3.
    发明公开
    Beta-Lactam Derivatives 失效
    β-Lactamderivate。

    公开(公告)号:EP0409081A1

    公开(公告)日:1991-01-23

    申请号:EP90113352.0

    申请日:1990-07-12

    摘要: β-Lactam compounds of the formula
    in which R₁ is a cyclic or secondary acyclic amino group which independently has antibacterial activity;
    R₂ is hydrogen, lower alkoxy, lower alkylthio or formamido;
    R₃ is hydrogen or an organic group bonded through carbon, oxygen, sulfur or nitrogen;
    R₄ is an electronegative acidic group; or R₃ and R₄ together form a heterocycle; and
    R₅ is hydrogen or lower alkyl, except when R₃ and R₄ form a heterocycle, in which case R₅ is hydrogen only;
    and readily hydrolyzable esters and pharmaceutically acceptable salts of these compounds, and hydrates of any of the foregoing.
    The products have antibacterial activity.

    摘要翻译: 式(CHEM)的β-内酰胺化合物,其中R1是独立地具有抗菌活性的环状或次级无环氨基; R2是氢,低级烷氧基,低级烷硫基或甲酰氨基; R3是氢或通过碳,氧,硫或氮键合的有机基团; R4是电负性酸性基团; 或R3和R4一起形成杂环; 并且R 5为氢或低级烷基,但当R 3和R 4形成杂环时,其中R 5为氢; 和这些化合物易于水解的酯和药学上可接受的盐,以及上述任何一种的水合物。 该产品具有抗菌活性。