The present invention relates to a class of compounds and to diagnostic compositions containing such compounds where the compounds are iodine containing compounds. More specifically the iodine containing compounds are chemical compounds containing two linked iodinated phenyl groups of the general formula R—N(CO—CH3)—X—N(CO—CH3)—R and salts or optical active isomers thereof, wherein X denotes a divalent linking moiety with 5 to 10 bridge elements of carbon, oxygen, sulphur and nitrogen separating the acetylated nitrogen atoms, and which may be further substituted by hydroxyl groups, by C1 to C4 alkyl moieties optionally substituted by hydroxyl groups, by C1 to C4 alkoxy groups, by amino groups and by C1 to C4 alkylamino groups, and wherein 2 or 3 carbon bridge elements together with alkyl or alkoxy groups form a cyclopentane, cyclohexane, pentahydropyran or tetrahydrofuran entity which may be alkyl- or hydroxyalkyl-substituted and each R denotes a triiodinated phenyl residue further substituted by hydrophilic moieties. The invention also relates to the use of such diagnostic compositions as contrast agents in diagnostic imaging and in particular in X-ray imaging, and to contrast media containing such compounds.
本发明涉及一类化合物和含有这些化合物的诊断组合物,其中这些化合物是含有
碘的化合物。更具体地说,这些含
碘化合物是
化学化合物,包含两个连接的
碘化苯基团,其一般式为R—N(CO—
CH3)—X—N(CO— )—R,以及其盐或光学活性异构体,其中X表示一个二价连接基,其中有5到10个碳,氧,
硫和氮的桥元素分隔乙酰化氮原子,并且可能进一步由羟基,C1到C4烷基基团(可选择地由羟基取代),C1到C4烷氧基,
氨基和C1到C4烷基
氨基取代,其中2或3个碳桥元素与烷基或烷氧基形成
环戊烷,
环己烷,五氢
吡喃或
四氢呋喃实体,其可以是烷基或羟基烷基取代的,并且每个R表示三
碘化苯基残基,进一步取代了亲
水性基团。本发明还涉及将这样的诊断组合物用作诊断成像中的造影剂,特别是在X射线成像中的造影剂,以及含有这些化合物的造影剂。