The invention relates to metabolically labile water-insoluble esters of formula
wherein R¹ is a an aliphatic, araliphatic, aryl or heterocyclic group;
R² is hydrogen or an aliphatic, aryl or araliphatic group;
R³ is as defined for R¹, or R³ and R² together form an alkylene chain;
the molecule containing at least one iodine atom and being metabolised to form products which are soluble in body fluids. The esters are used in X-ray and ultrasound image enhancement.
本发明涉及可代谢的
水不溶性酯,其式为
其中 R¹ 是脂肪族、脂肪族、芳基或杂环基团;
R² 是氢或脂肪族、芳基或脂肪族基团;
R³ 与 R¹ 的定义相同,或 R³ 和 R² 共同构成亚烷基链;
分子中至少含有一个
碘原子,经代谢后形成可溶于体液的产物。
酯类可用于 X 射线和超声波图像增强。