Process for preparing 1,4,8,11-tetraazacyclotetradecane
    12.
    发明授权
    Process for preparing 1,4,8,11-tetraazacyclotetradecane 失效
    制备1,4,8,11-四氮杂环十四烷的方法

    公开(公告)号:US5608061A

    公开(公告)日:1997-03-04

    申请号:US510207

    申请日:1995-08-02

    CPC classification number: C07D257/02

    Abstract: An improved process for preparing 1,4,8,11-tetraazacyclotetradecane comprising the tetratosylation of an acyclic tetraamine to obtain a tetratoluenesulfonamide compound in a first step, the cyclization of said sulfonamide compound to obtain tetratosyl cyclam in a second step, and the detosylation of tetratosyl cyclam in a third step followed by basification to obtain the desired 1,4,8,11-tetraazacyclotetradecane.

    Abstract translation: 一种制备1,4,8,11-四氮杂环十四烷的改进方法,其包括无环四胺的四甲硅烷基化以在第一步中获得四磺酰胺化合物,在第二步中环化所述磺酰胺化合物以获得四基体环已烷,并进行脱甲苯基化 在第三步骤中进行四糖基环化,然后碱化以获得所需的1,4,8,11-四氮杂环十四烷。

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