Cross-linked polymeric compositions for increasing the MRI contrast in
visualising the digestive tract of patients
    72.
    发明授权
    Cross-linked polymeric compositions for increasing the MRI contrast in visualising the digestive tract of patients 失效
    用于增加患者消化道可视化MRI对比度的交联聚合物组合物

    公开(公告)号:US6060040A

    公开(公告)日:2000-05-09

    申请号:US997453

    申请日:1997-12-23

    摘要: The invention provides, as contrast signal generators in MR imaging of the digestive tract, paramagnetic metal chelates of novel acrylic compounds of formula C(R.sup.1 R.sup.2).dbd.CR.sup.3 --CO--Z--A (1) and/or C(R.sup.1 R.sup.2).dbd.CR.sup.3 --O--Z--A--Z--CO--CR.sup.3 .dbd.C(R.sup.1 R.sup.2) (2) in monomer, oligomer, homopolymer and copolymer forms, in which the R.sup.1, R.sup.2 and R.sup.3 represent H or saturated or unsaturated C.sub.1-10 aliphatic radicals optionally substituted by one or more OH groups; Z is a covalent bond or a linker spacer and A is a moiety capable of fixing a paramagnetic metal by chelation. Compounds of type (1) useful in the present invention are, for instance the polyalkylene-aminopolycaboxylic acids such as NTA, EDTA, DTPA, DOTA and like structures, possibly involving additional substituents; an example is the compound BOPTA which is a DTPA derivative carrying a benzyloxypropyl group.

    摘要翻译: 本发明提供作为消化道MR成像中的对比信号发生器,式C(R1R2)= CR3-CO-ZA(1)和/或C(R1R2)= CR3-OZAZ-的新型丙烯酸化合物的顺磁性金属螯合物, CO-CR 3 = C(R 1 R 2)(2)在单体,低聚物,均聚物和共聚物形式中,其中R 1,R 2和R 3表示H或任选被一个或多个OH基团取代的饱和或不饱和C 1-10脂族基团; Z是共价键或连接基团,A是通过螯合固定顺磁性金属的部分。 可用于本发明的(1)型化合物是例如可能涉及另外的取代基的聚亚烷基 - 氨基多羧酸如NTA,EDTA,DTPA,DOTA等结构; 作为具有苄氧基丙基的DTPA衍生物的化合物BOPTA的实例。