Process for synthesizing carbapenem intermediates
    4.
    发明授权
    Process for synthesizing carbapenem intermediates 失效
    合成碳青霉烯中间体的方法

    公开(公告)号:US6080854A

    公开(公告)日:2000-06-27

    申请号:US129206

    申请日:1998-07-27

    IPC分类号: C07D205/08

    CPC分类号: C07D205/08 Y02P20/55

    摘要: A process of synthesizing a compound of formula I is described: ##STR1## wherein P and P' independently represent H or a protecting group, R.sub.1 represents H or C.sub.1-4 alkyl, and Hal represents a halogen characterized by reacting a compound of formula 2: ##STR2## with R.sub.2 OH, wherein R.sub.2 is C.sub.1-4 alkyl, C.sub.6-10 aryl or C.sub.5-10 heteroaryl in the presence of an acid catalyst or carbodiimide reagent to produce a compound of formula 3: ##STR3## and reacting a compound of formula 3 in the presence of a base and a haloalkylating agent to produce a compound of formula 1.

    摘要翻译: 描述了合成式I化合物的方法:其中P和P'独立地表示H或保护基,R 1表示H或C 1-4烷基,Hal表示卤素,其特征在于使式2化合物与R2OH反应 其中R 2是C 1-4烷基,C 6-10芳基或C 5-10杂芳基,在酸催化剂或碳二亚胺试剂存在下制备式3化合物:和式3化合物在碱存在下和 卤代烷基化剂以制备式1化合物。