Compounds having the structure
wherein (Z)̵COO is the residue of an iodinated aromatic acid;
n is an integer from 0 to 20;
R¹ and R² are independently H, alkyl, fluoro-alkyl, cycloalkyl, aryl, aralkyl, alkoxy or aryloxy;
R³ and R⁴ are independently a substituent as defined for R¹ and R² above, halogen, hydroxy or an acylamino;
and R⁵ and R⁶ are independently H, alkyl, cycloalkyl, aryl, aralkyl, alkoxy, alkoxyalkyl, or acetamidoalkyl;
or R⁵ and R⁶, taken together with the nitrogen atom to which they are attached, represent a 4 to 7-membered nitrogen containing ring,
are useful as contrast agents in x-ray imaging compositions and methods for x-ray diagnostic imaging.
具有以下结构的化合物
其中(Z)̵COO 是
碘化
芳香酸的残留物;
n 是 0 至 20 的整数;
R¹ 和 R² 独立地为 H、烷基、
氟代烷基、环烷基、芳基、芳烷基、烷氧基或芳氧基;
R³ 和 R⁴ 独立地为上文 R¹ 和 R² 所定义的取代基、卤素、羟基或酰
氨基;
和 R⁵ 和 R⁶ 独立地为 H、烷基、环烷基、芳基、芳烷基、烷氧基、烷氧基烷基或乙酰胺基烷基;
或 R⁵ 和 R⁶ 与它们所连接的氮原子一起代表 4 至 7 元含氮环、
可用作 X 射线成像组合物和 X 射线诊断成像方法中的造影剂。