.beta.-lactam compounds and production process thereof
    1.
    发明授权
    .beta.-lactam compounds and production process thereof 失效
    β-内酰胺化合物及其制备方法

    公开(公告)号:US5191074A

    公开(公告)日:1993-03-02

    申请号:US746083

    申请日:1991-08-12

    IPC分类号: C07D205/08 C07F7/08 C07F7/18

    摘要: A process for producing a .beta.-lactam compound of the formula ##STR1## wherein OR.sup.1 is a protected or unprotected hydroxyl group; R.sup.2 is a C.sub.1 to C.sub.7 alkyl or aryl group; from an azetidinone compound of the formula ##STR2## wherein X is an electronegative group removable through the reaction in three steps in which the second step subjects the .beta.-lactam compound obtained in the first step to silylation to convert the R.sup.2 group to the beta form.

    摘要翻译: 制备式“IMAGE”的β-内酰胺化合物的方法,其中OR1是被保护或未被保护的羟基; R2是C1-C7烷基或芳基; 其中X是通过三个步骤可以通过反应除去的电负性基团,其中第二步骤将第一步中获得的β-内酰胺化合物甲硅烷基化以将R2基团转化为β形式 。