Process for the production of monoamides of DTPA
    35.
    发明授权
    Process for the production of monoamides of DTPA 失效
    生产DTPA单酰胺的方法

    公开(公告)号:US06677483B2

    公开(公告)日:2004-01-13

    申请号:US10056044

    申请日:2002-01-28

    IPC分类号: C07C22900

    CPC分类号: C07C231/02 C07C237/04

    摘要: A new process for the preparation of diethylenetriaminepentaacetic-monoamides in which amines can be reacted with sensitive groups, a higher mono/diamide selectivity is achieved, a higher yield of monoamide is achieved and has a simple reaction scheme and working-up.

    摘要翻译: 制备二胺三胺五乙酸单酰胺的新方法,其中胺可以与敏感基团反应,获得更高的单/二酰胺选择性,实现了更高的单酰胺产率,并且具有简单的反应方案和后处理。

    Process for the production of perbenzylated 1-O-glycosides
    40.
    发明授权
    Process for the production of perbenzylated 1-O-glycosides 失效
    过苄基化1-O-糖苷的生产方法

    公开(公告)号:US06545135B2

    公开(公告)日:2003-04-08

    申请号:US09801050

    申请日:2001-03-08

    IPC分类号: C07H1500

    CPC分类号: C07H15/203

    摘要: The invention relates to a process for the production of perbenzylated 1-O-glycosides of general formula I or salts thereof in which sugar1 is a monosaccharide that is functionalized in 1-OH-position, R represents benzyl, n means 2, 3 or 4, means —O—, —S—, —COO— or —NH— and L means a straight-chain, branched, saturated or unsaturated C1-C30 carbon chain, which optionally is interrupted or substituted by groups. The process according to the invention starts from economical starting materials, provides good yields and allows the production of perbenzylated saccharides with 1-O-functionalized side chains on an enlarged scale.

    摘要翻译: 本发明涉及生产通式I的过苄氧基化的1-O-糖苷或其盐的方法,其中所述的1是在1-OH位官能化的单糖,R表示苄基,n表示2,3或4, -O - , - S - , - COO-或-NH-和L表示直链,支链,饱和或不饱和的C 1 -C 30碳链,其任选被基团中断或取代。根据本发明的方法从 经济的起始原料,提供良好的产率,并允许以1-O-官能化侧链的大范围生产过苄基化糖。