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 (I) and salts or optical active isomers thereof, wherein each R
1
independently are the same or different and denotes a hydrogen atom or a C
1
to C
4
straight or branched alkyl group which is optionally substituted by 1 to 4 —OH groups; each of R
2
independently are the same or different and denote a hydrogen atom or a C
1
to C
4
straight or branched alkyl group; each R
3
independently are the same or different and denotes a hydrogen atom or a C
1
to C
4
straight or branched alkyl group which is optionally substituted by 1 to 4 —OH groups; each R
4
independently are the same or different and denote C
1
to C
6
straight or branched alkyl moieties substituted by up to 6 —OH groups; and each R
5
independently are the same or different and denote C
1
to C
6
straight or branched alkyl moieties substituted by up to 6 —OH groups; and X denotes a straight chain alkylene moiety with 3 to 10 carbon atoms, a 1,4-cyclohexylene group, or X together with the adjacent —NR
1
groups forms a 1,4-piperazine group or a 4-aminopiperidine group. 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
碘化合物。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,具有一般式(I)及其盐或光学异构体,其中每个R1独立地相同或不同,表示氢原子或C1到C4直链或支链烷基,该烷基可被1到4个-OH基取代;每个R2独立地相同或不同,表示氢原子或C1到C4直链或支链烷基;每个R3独立地相同或不同,表示氢原子或C1到C4直链或支链烷基,该烷基可被1到4个-OH基取代;每个R4独立地相同或不同,表示C1到C6直链或支链烷基基团,可被多达6个-OH基取代;每个R5独立地相同或不同,表示C1到C6直链或支链烷基基团,可被多达6个-OH基取代;X表示直链烷基基团,具有3到10个碳原子,1,4-环己基基团,或X与相邻的-NR1基团一起形成1,4-
哌嗪基团或4-
氨基
哌嗪基团。本发明还涉及将这种诊断组合物用作对比剂进行诊断成像,特别是X射线成像,以及含有这些化合物的对比介质。