申请人:Sterling Winthrop Inc.
公开号:US05326553A1
公开(公告)日:1994-07-05
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 and an x-ray producing agent of the formula ##STR1## and methods for their use in diagnostic radiology of the gastrointestinal tract wherein Z=H, halo, C.sub.1 -C.sub.20 alkyl, cycloalkyl, lower alkoxy, cyano, where the alkyl and cycloalkyl groups can be substituted with halogen or halo-lower-alkyl groups; R=C.sub.1 -C.sub.25 alkyl, cycloalkyl, or halo-lower-alkyl, optionally substituted with halo, fluoro-lower-alkyl, aryl, lower-alkoxy, hydroxy, carboxy, lower-alkoxy carbonyl or lower-alkoxycarbonyloxy, (CR.sub.1 R.sub.2).sub.p-- (CR.sub.3 .dbd.CR.sub.4).sub.m Q, or (CR.sub.1 R.sub.2).sub.p --C.tbd.C--Q; R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are independently lower-alkyl, optionally substituted with halo; x is 1-4; n is 1-5; m is 1-15; p is 1-10; and Q is H, lower-alkyl, lower-alkenyl, lower-alkynyl, lower-alkylene, aryl, or aryl-lower alkyl in a pharmaceutically acceptable carrier.
揭示了用于口服或逆行检查消化道的X射线造影剂组合物,包括能够在消化道上形成涂层的聚合物材料和具有以下结构的X射线产生剂的方法:##STR1##以及它们在消化道诊断放射学中的使用方法,其中Z=H,卤素,C.sub.1-C.sub.20烷基,环烷基,较低烷氧基,氰基,其中烷基和环烷基基团可被卤素或卤素较低烷基基团取代;R=C.sub.1-C.sub.25烷基,环烷基,或卤素较低烷基,可选择地被卤素,氟代较低烷基,芳基,较低烷氧基,羟基,羧基,较低烷氧基羰基或较低烷氧羰氧基,(CR.sub.1 R.sub.2).sub.p--(CR.sub.3.dbd.CR.sub.4).sub.m Q,或(CR.sub.1 R.sub.2).sub.p--C.tbd.C--Q;R.sub.1,R.sub.2,R.sub.3和R.sub.4独立地为较低烷基,可选择地被卤素取代;x为1-4;n为1-5;m为1-15;p为1-10;Q为H,较低烷基,较低烯基,较低炔基,较低烷基烯,芳基,或芳基-较低烷基,位于药学上可接受的载体中。