Difficol, intermediate in antibiotic preparation
    4.
    发明授权
    Difficol, intermediate in antibiotic preparation 失效
    歧杆菌,抗生素制剂中间体

    公开(公告)号:US4609742A

    公开(公告)日:1986-09-02

    申请号:US697806

    申请日:1985-02-04

    摘要: The subject disclosure discloses a chemical intermediate in antibiotic synthesis of the structure: ##STR1## wherein R.sub.1 is H or OH and the asterisks indicate asymmetric carbon atoms. Compounds of this type may be obtained by fermentation with a strain of B. subtilis under aerobic conditions. Compounds of the above structure are biologically inactive but are converted by phosphorylation of the hydroxyl group to produce compounds of the structure: ##STR2## wherein R.sub.1 is H or OH, which are useful antibacterial substances having a broad spectrum of antibacterial activity.

    摘要翻译: 本发明公开了一种结构抗生素合成中的化学中间体:其中R 1是H或OH并且星号表示不对称碳原子。 这种类型的化合物可以通过在需氧条件下用枯草芽孢杆菌菌株发酵来获得。 上述结构的化合物是生物学上无活性的,但是通过羟基的磷酸化转化而产生下列结构的化合物:其中R1是H或OH,它们是具有广谱抗菌活性的有用的抗菌物质。

    Method for the separation of antibiotic macrolides
    9.
    发明授权
    Method for the separation of antibiotic macrolides 失效
    分离抗生素大环内酯类的方法

    公开(公告)号:US4160084A

    公开(公告)日:1979-07-03

    申请号:US840921

    申请日:1977-10-11

    IPC分类号: C07H19/01 C07H17/08

    CPC分类号: C07H19/01 Y10S435/886

    摘要: This case relates to a novel process which aids in the isolation and purification of novel compounds which are produced by the microorganism, Streptomyces avermitilis. The process described utilizes a column containing a hydroxyalkylated dextran gel as a step in the separation of the desired compounds. The compounds which are isolated and purified are described generically as C-076 and have significant parasiticidal activity.

    摘要翻译: 这种情况涉及一种有助于分离和纯化由微生物链霉菌(Streptomyces avermitilis)产生的新化合物的新方法。 所述方法使用含有羟烷基化葡聚糖凝胶的柱作为分离所需化合物的步骤。 分离和纯化的化合物一般被描述为C-076并且具有显着的杀寄生虫活性。