Stable oxpenem-3-carboxylic acids as beta-lactamase inhibitors
    1.
    发明授权
    Stable oxpenem-3-carboxylic acids as beta-lactamase inhibitors 失效
    稳定的氧化烯-3-羧酸作为β-乳酸酶抑制剂

    公开(公告)号:US5108747A

    公开(公告)日:1992-04-28

    申请号:US413404

    申请日:1989-09-27

    CPC分类号: A61K31/70 C07D503/00

    摘要: A pharmaceutical preparation comprising an antibiotic, a pharmaceutical excipient therefor, and in addition an oxapenem-3-carboxylic acid of the formula ##STR1## or a pharmaceutically acceptable salt, ester or amide in which R.sup.1 and R.sup.2 each independently is hydrogen or a pharmaceutically acceptable group having 1 to 10 carbon atoms which is connected with the balance of the molecule via carbon-carbon single bonds, and in whichR.sup.3, R.sup.4 and R.sup.5 each independently is a pharmaceutically acceptable group having 1 to 10 carbon atoms which is connected with the balance of the molecule via carbon-carbon single bonds.

    摘要翻译: 一种药物制剂,其包含抗生素,其药用赋形剂,另外还包含式IMA的oxapenem-3-羧酸或其药学上可接受的盐,酯或酰胺,其中R 1和R 2各自独立地为氢或药学上可接受的 具有1至10个碳原子的基团,其经由碳 - 碳单键与分子的余量连接,并且其中R 3,R 4和R 5各自独立地为具有1-10个碳原子的药学上可接受的基团,其与天平连接 的分子通过碳 - 碳单键。

    3-Substituted bicyclic aqetidinone derivatives
    2.
    发明授权
    3-Substituted bicyclic aqetidinone derivatives 失效
    3-取代的双环甲基喹啉酮衍生物

    公开(公告)号:US4431588A

    公开(公告)日:1984-02-14

    申请号:US430080

    申请日:1982-09-30

    摘要: Subject of the present invention are compounds of the formula ##STR1## which can be used as intermediates, wherein R represents hydrogen or R.sub.a, which represents an organic radical bonded to the ring carbon atom via a carbon atom,each of the radicalsR.sub.b and R.sub.c represents hydrogen or an organic radical bonded to the ring carbon atom via a carbon atom, it being possible for the two radicals to be bonded to one another,A represents a lower alkylene radical having 2 or 3 carbon atoms between the two hetero atoms, andn represents 0 or 2,the stereoisomers thereof and mixtures of these stereoisomers and also processes for the manufacture of such compounds of the formula I.From compounds of the formula I it is possible to manufacture 6-R.sub.a -2-penem-4-carboxylic acid compounds having antibiotic properties.

    摘要翻译: 本发明的主题是可以用作中间体的式(I)化合物,其中R表示氢或R a,其表示通过碳原子与环碳原子键合的有机基团,每个基团 Rb和Rc表示氢或通过碳原子与环碳原子键合的有机基团,两个基团可以彼此键合,A表示在两个杂原子之间具有2或3个碳原子的低级亚烷基 原子,n表示0或2,其立体异构体和这些立体异构体的混合物,以及制备式I化合物的方法。从式I化合物可以制备6-Ra-2-penem- 具有抗生素特性的4-羧酸化合物。