Process for P-nitrobenzyl ester cleavage in cephalosporin
    1.
    发明授权
    Process for P-nitrobenzyl ester cleavage in cephalosporin 失效
    头孢菌素中对硝基苄酯切割的方法

    公开(公告)号:US5536830A

    公开(公告)日:1996-07-16

    申请号:US453911

    申请日:1995-05-30

    IPC分类号: C07D501/00 C07D501/04

    CPC分类号: C07D501/00

    摘要: A process for converting cephalosporin p-nitrobenzyl ester (Formula I) to the corresponding cephalosporin free acid (Formula II) comprising treating the cephalosporin p-nitrobenzyl ester with a metal selected from the group consisting of iron, magnesium, aluminum, and tin, and with hydrochloric acid in a mixture of water and a water-miscible organic solvent. Preferably, the metal is iron in the form of a fine powder, and the reaction is carried out at a temperature in the range of 30.degree.-50.degree. C.

    摘要翻译: 一种将头孢菌素对硝基苄基酯(式I)转化成相应的头孢菌素游离酸(式II)的方法,包括用选自铁,镁,铝和锡的金属处理头孢菌素对硝基苄酯,以及 用盐酸与水和水混溶的有机溶剂的混合物。 优选地,金属是细粉末形式的铁,并且反应在30-50℃的温度下进行。

    Herbicide tolerant Brassica juncea and method of production
    3.
    发明授权
    Herbicide tolerant Brassica juncea and method of production 失效
    除草剂耐受性芸苔和生产方法

    公开(公告)号:US07002056B2

    公开(公告)日:2006-02-21

    申请号:US10096172

    申请日:2002-03-12

    IPC分类号: A01H1/00 A01H4/00

    CPC分类号: A01H5/00

    摘要: The invention is in the field of Brassica juncea breeding (i.e., Brassica breeding), specifically relating to the development of stable herbicide tolerant Brassica juncea lines, plants and plant parts produced from a line designated 98SJ-238XX. A method of producing stable herbicide tolerant Brassica juncea lines, plants and plant parts from the Brassica juncea line designated 98SJ-238XX is also provided.

    摘要翻译: 本发明在芸苔属育种(即芸苔属育种)领域,特别涉及开发稳定的除草剂耐受性芸苔属芥菜品系,从98SJ-238XX系列产生的植物和植物部位。 还提供了一种从名称为98SJ-238XX的芸苔属品系生产稳定的除草剂耐受性芸苔属细线,植物和植物部分的方法。