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    • 5. 发明授权
    • Benzyloxy derivatives of DTPA for MRI
    • 用于MRI的DTPA的苄氧基衍生物
    • US6099824A
    • 2000-08-08
    • US904646
    • 1997-08-01
    • Pier Lucio AnelliAndrea BeltramiFulvio UggeriMario Virtuani
    • Pier Lucio AnelliAndrea BeltramiFulvio UggeriMario Virtuani
    • A61K49/06C07C229/16C07C229/22C07C229/76A61B5/055
    • C07C229/76A61K49/06C07C229/16C07C229/22Y10S514/836
    • Compounds which can chelate paramagnetic bi- and trivalent metal ions, their chelates with said metal ions and their use as contrast agents in magnetic resonance imaging (MRI), the compounds having formula (I) ##STR1## wherein R is a --(CH.sub.2).sub.m --O--R.sub.2 group or hydrogen,R.sub.2 is a (C.sub.6 -C.sub.10) aryl, or an alkyl(C.sub.1 -C.sub.5)-aryl(C.sub.6 -C.sub.10) group, substituted or not by a group L corresponding to a OH group or a OR.sub.3 group, wherein R.sub.3 is a linear or branched (C.sub.1 -C.sub.5) alkyl group; or L is NH.sub.2, halogen, COOH or CONR.sub.4 R.sub.5 wherein R.sub.4 and R.sub.5 are independently hydrogen, or a linear or branched (C.sub.1 -C.sub.5) alkyl which can be substituted by 1-6 hydroxy groups and/or 1-6 alkoxy groups,R.sub.1 can have the same meanings as R, independently from it, except for hydrogen,Z is independently OH or OR.sub.6, or NR.sub.4 R.sub.5 wherein R.sub.4 and R.sub.5 are as previously defined, and R.sub.6 is a (C.sub.1 -C.sub.10) alkyl, linear or branched, which can be substituted by 1-6 hydroxyl and/or alkoxyl groups,m is between 1 and 5.
    • 可以螯合顺磁性双金属和三价金属离子的化合物,它们与所述金属离子的螯合物以及它们在磁共振成像(MRI)中作为造影剂的用途,具有式(I)的化合物其中R是 - (CH 2)m O-R 2 基团或氢,R2是(C6-C10)芳基或(C1-C5) - 芳基(C6-C10)烷基,被对应于OH基团或OR3基团的基团L取代或不被取代,其中R3 是直链或支链(C1-C5)烷基; 或L是NH 2,卤素,COOH或CONR 4 R 5,其中R 4和R 5独立地是氢,或可被1-6个羟基和/或1-6个烷氧基取代的直链或支链(C1-C5)烷基,R1可以 具有与R独立的含义,除氢外,Z独立地为OH或OR 6,或NR 4 R 5,其中R 4和R 5如前所定义,R 6为直链或支链的(C1-C10)烷基,其可以是 被1-6个羟基和/或烷氧基取代,m在1和5之间。