Compositions of iodophenyl esters and iodophenyl sulfonates in film-forming materials for visualization of the gastrointestinal tract
    1.
    发明公开

    公开(公告)号:EP0617970A2

    公开(公告)日:1994-10-05

    申请号:EP94200842.6

    申请日:1994-03-29

    IPC分类号: A61K49/04

    摘要: Disclosed are x-ray contrast compositions for oral or retrograde examination of the gastrointestinal tract comprising a polymeric material capable of forming a coating on the gastrointestinal tract, said polymeric material having atoms containing polarizable electrons thereon, in combination with a divalent cation; and an x-ray contrast producing agent of the formula

    or a pharmaceutically accetable salt thereof,
    wherein

    X =
    or

    Z = H, halo, C 1 -C 20 alkyl, cycloalkyl, lower alkoxy, cyano, where the alkyl and cycloalkyl groups can be substituted with halogen or halo-lower-alkyl groups;
    R = C 1 -C 25 alkyl, cycloalkyl, aryl or halo-lower-alkyl, optionally substituted with halo, fluoro-lower-alkyl, lower-alkoxy, hydroxy, carboxy or lower-alkoxy carbonyl, lower-alkenyl, lower-alkynyl, lower-alkylene or lower-alkoxy-carbonyloxy,
    n is 1-5;
    y is 0-4; and
    w is 1-4,

    in a pharmaceutically acceptable carrier and a method of its use in diagnostic radiology of the GI tract.

    摘要翻译: 一种X射线对比组合物,其设计用于将薄的柔性膜沉积在吸收患者肠内表面的营养物的粘膜上,以在营养吸收内表面和肠内容物之间形成屏障,该柔性膜 保留与粘膜衬里结合的膜直到通过正常细胞周转消除为止包括基于w / v:(a)在pH 5-8范围内能够在胃肠道上形成膜膜的0.1-15%的聚合物材料, 该聚合物材料选自:(i)以电离形式携带负电荷的阴离子聚合物; (ii)以电离形式携带正电荷的阳离子聚合物; (iii)在O,N,S,F,Cl,Br和I上具有极化电子的中性聚合物; 与(b)0.1-15%的二价阳离子结合,以增强柔性膜膜与粘膜衬里的结合,阳离子选自Ca2 +,Mg2 +,Zn2 +或Ba2 +; 和(c)0.001-75%的式(I)的X射线造影剂或其盐之一。 在(I)中,X = CO; Z = H,卤素,5-20C烷基,环烷基等; R = 1-25C烷基,环烷基或芳基等; n = 1-5; y = 0-4; w = 1-4。