Phosphinic acid esters and process for preparing the same
    2.
    发明授权
    Phosphinic acid esters and process for preparing the same 失效
    膦酸酯及其制备方法

    公开(公告)号:US4510102A

    公开(公告)日:1985-04-09

    申请号:US458946

    申请日:1983-01-18

    摘要: Disclosed is a novel process for preparing [(3-amino-3-carboxy)-propyl-1]phosphinic acid derivatives, comprising reacting an alkylalkylphosphonyl halide with a vinylmagnesium halide to form a vinylphosphinic acid derivative, and reacting the vinylphosphinic acid derivative with a Shiff's base to form the aimed product. Also disclosed is a novel intermediate compound formed during the course of the above process, which compound has the general formula: ##STR1## (wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4 and R.sup.5 are as defined in the specification).

    摘要翻译: 公开了一种制备[(3-氨基-3-羧基) - 丙基-1]次膦酸衍生物的新方法,包括使烷基烷基膦酰卤与乙烯基卤化镁反应形成乙烯基次膦酸衍生物,并使乙烯基次膦酸衍生物与 希夫的基础形成目标产品。 还公开了在上述方法中形成的新型中间体化合物,该化合物具有以下通式:其中R1,R2,R3,R4和R5如说明书中所定义。

    Cephalosporin compounds
    7.
    发明授权
    Cephalosporin compounds 失效
    头孢菌素化合物

    公开(公告)号:US4791197A

    公开(公告)日:1988-12-13

    申请号:US751208

    申请日:1985-07-02

    CPC分类号: C07D277/20 Y02P20/55

    摘要: A new cephalosporin compound is now provided, which is useful as antibacterial agent and is represented by the general formula (I) ##STR1## wherein R.sup.1 is an amino group or a protected amino group; R.sup.2 is a hydrogen atom, a salt-forming cation or a carboxyl-protecting group; R.sup.3 is a hydrogen atom, a halogen atom, a lower alkylthio group, a lower alkoxyl group, a vinyl group or a group of the formula: --CH.sub.2 Y where Y is a hydrogen atom, a halogen atom, an acyloxy group, an unsubstituted or substituted heterocyclic thio group or an unsubstituted or substituted pyridinio group, and a pharmaceutically acceptable salt or ester thereof.

    摘要翻译: 现提供一种新的头孢菌素化合物,其可用作抗菌剂并由通式(I)表示,其中R 1是氨基或被保护的氨基; R2是氢原子,成盐阳离子或羧基保护基; R3是氢原子,卤素原子,低级烷硫基,低级烷氧基,乙烯基或下式基团:-CH2Y其中Y是氢原子,卤素原子,酰氧基,未取代的或未取代的 取代的杂环硫基或未取代或取代的吡啶并基及其药学上可接受的盐或酯。

    1-N-[(S)-.alpha.-hydroxy-.omega.-aminoacyl] derivatives of
3',4'-dideoxykanamycin B and 3'-deoxykanamycin B antibiotics
    8.
    发明授权
    1-N-[(S)-.alpha.-hydroxy-.omega.-aminoacyl] derivatives of 3',4'-dideoxykanamycin B and 3'-deoxykanamycin B antibiotics 失效
    1-N- {8(S) - {6-羟基 - {107-氨基酰基{9 {3的衍生物{40,4 {40-脱氧卡那霉素B和3 {40-脱氧卡那霉素B抗生素

    公开(公告)号:US4107424A

    公开(公告)日:1978-08-15

    申请号:US708076

    申请日:1976-07-23

    摘要: A new and useful 1-N-[(S)-.alpha.-hydroxy-.omega.-aminoacyl] derivative of an aminoglycosidic antibiotic, including its deoxy derivative, such as kanamycin B, 3'-deoxyneamine, 3',4'-dideoxyneamine, 3',4'-dideoxyribostamycin or 3',4'-dideoxykanamycin B is now synthetized from the parent substance, aminoglycosidic antiobiotic. The new 1-N-[(S)-.alpha.-hydroxy-.omega.-aminoacyl] derivative shows a wider and/or higher antibacterial activity than the parent substance and is useful in the treatment of infections by gram-negative and gram-positive bacteria, including drug-resistant strains thereof. The preparation of this new derivative may be made by 1-N-acylating the parent aminoglycosidic antibiotic with (S)-.alpha.-hydroxy-.omega.-aminocarboxylic acid with the amino group being protected, and chromatographically separating the acylated products to isolate the desired 1-N-acyl derivative, followed by the removal of the amino-protecting group.

    摘要翻译: 一种新的有用的氨基糖苷类抗生素的1-N - [(S)-α-羟基-ω-氨基酰基]衍生物,包括其脱氧衍生物,如卡那霉素B,3'-脱氧烯胺,3',4'-二脱氧苯胺, 3',4'-双脱氧核糖霉素或3',4'-双脱氧卡那霉素B现在由母体物质氨基糖苷类抗生素合成。 新的1-N - [(S)-α-羟基 - ω-氨基酰基]衍生物显示比母体更广泛和/或更高的抗菌活性,并且可用于治疗革兰氏阴性和革兰氏阳性细菌感染 ,包括其耐药菌株。 这种新衍生物的制备可以通过用(S)-α-羟基 - ω-氨基羧酸与被保护的氨基进行1-N-酰化母体氨基糖苷类抗生素,并将酰化产物色谱分离以分离所需的1 -N-酰基衍生物,然后除去氨基保护基。