Compositions of iodophenyl esters and iodophenyl sulfonates in film-forming materials for visualization of the gastrointestinal tract
申请人:NYCOMED IMAGING AS
公开号:EP0617970A2
公开(公告)日:1994-10-05
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, C1-C20 alkyl, cycloalkyl, lower alkoxy, cyano, where the alkyl and cycloalkyl groups can be substituted with halogen or halo-lower-alkyl groups;
R = C1-C25 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.
本发明公开了用于胃肠道口腔或逆行检查的 X 射线造影剂组合物,该组合物包括一种可在胃肠道上形成涂层的聚合材料,所述聚合材料上有含有可极化电子的原子,并与二价阳离子结合;以及一种X射线造影剂,其式为
或其可药用盐、
其中
X =
或
Z = H、卤素、C1-C20 烷基、环烷基、低级烷氧基、氰基,其中烷基和环烷基可被卤素或卤代低级烷基取代;
R = C1-C25 烷基、环烷基、芳基或卤代低烷基,可任选被卤代、氟代低烷基、低烷氧基、羟基、羧基或低烷氧基羰基、低烯基、低炔基、低亚烷基或低烷氧基羰氧基取代、
n 是 1-5
y 是 0-4;以及
w 为 1-4、
在药学上可接受的载体中,及其在消化道放射诊断中的使用方法。