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    • 9. 发明授权
    • Compositions of iodoaniline derivatives and cellulose derivatives for
visualization of the gastrointestinal tract
    • 用于可视化胃肠道的碘苯胺衍生物和纤维素衍生物的组合物
    • US5422114A
    • 1995-06-06
    • US201731
    • 1994-02-25
    • Carl R. IlligThomas J. CaulfieldRobert W. LeeEdward J. Baker
    • Carl R. IlligThomas J. CaulfieldRobert W. LeeEdward J. Baker
    • A61K9/107A61K49/04C08K5/315C08L101/00C08L101/06G01N21/00
    • A61K49/0404A61K49/0409A61K49/0461
    • Disclosed are x-ray contrast compositions for oral or retrograde examination of the gastrointestinal tract comprising an x-ray producing agent of the formula or a pharmaceutically acceptable salt thereof ##STR1## and methods for their use in diagnostic radiology of the gastrointestinal tract, whereinZ is 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.sub.1 and R.sub.2 are independently H, C.sub.1 -C.sub.25 alkyl, cycloalkyl, acetyl or halo-lower-alkyl, wherein said C.sub.1 -C.sub.25 alkyl, cycloalkyl and halo lower-alkyl are optionally substituted with fluoro-lower-alkyl, aryl, lower-alkoxy, hydroxy, carboxy, lower-alkoxy carbonyl or lower-alkoxy-carbonyloxy and said acetyl is optionally substituted with fluoro-lower-alkyl, aryl, lower-alkoxy, hydroxy, lower-alkoxy carbonyl or lower-alkoxy-carbonyloxy;n is 1-4;y is 1-4; andx is 1 or 2in a pharmaceutically acceptable carrier comprising a cellulose derivative.
    • 公开了用于胃肠道口服或逆行检查的x射线造影剂组合物,其包含下式的x射线产生剂或其药学上可接受的盐及其用于胃肠道诊断放射学的方法,其中Z 是H,卤素,C 1 -C 20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 1和R 2独立地为H,C 1 -C 25烷基,环烷基,乙酰基或卤代低级烷基,其中所述C 1 -C 25烷基,环烷基和卤代低级烷基任选被氟 - 低级 - 烷基,芳基,低级 - 烷氧基 ,羟基,羧基,低级烷氧基羰基或低级烷氧基 - 羰氧基,所述乙酰基任选被氟 - 低级 - 烷基,芳基,低级 - 烷氧基,羟基,低级 - 烷氧基羰基或低级 - 烷氧基 - 羰氧基取代; n为1-4; y为1-4; 并且在包含纤维素衍生物的药学上可接受的载体中x为1或2。