Chemical compounds
    2.
    发明授权
    Chemical compounds 失效
    化合物

    公开(公告)号:US4193917A

    公开(公告)日:1980-03-18

    申请号:US713649

    申请日:1976-08-12

    IPC分类号: C07D205/095 C07D205/06

    CPC分类号: C07D205/095

    摘要: Novel semisynthetic .beta.-lactam intermediates of use in the production of cephalosporins, penicillins and related .beta.-lactam antibiotic compounds are provided. The novel compounds are prepared from .beta.-lactams obtained by cleavage of the 1,2-sulphur-carbon bond of a penicillin 1-oxide (with subsequent internal or external trapping of the sulphur atom to leave a residual substituent as the .beta.-lactam nitrogen) by removal of the said residual substituent by an oxidative cleavage reaction.

    摘要翻译: 提供了用于生产头孢菌素,青霉素和相关β-内酰胺抗生素化合物的新型半合成β-内酰胺中间体。 新化合物由通过切割青霉素1-氧化物的1,2-硫 - 碳键获得的β-内酰胺制备(随后硫原子的内部或外部捕获而留下残余取代基作为β-内酰胺氮 )通过氧化裂解反应除去所述残留取代基。