The present invention is directed towards isomerically pure 18F-labelled (6S)-or (6R)-5-methyltetrahydrofolate radiopharmaceuticals, wherein the phenyl group within the folate structure, has been replaced by an 18F-labelled N-heterocycle, for use in diagnostic imaging of a cell or population of cells expressing a folate-receptor in vitro or in vivo or for use in monitoring of cancer or inflammatory and autoimmune diseases and therapy thereof.
本发明涉及具有异构纯的18F标记的(6S)-或(6R)-
5-甲基四氢叶酸放射性药物,其中叶酸结构中的苯基被18F标记的N-杂环所取代,用于体外或体内诊断成像表达叶酸受体的细胞或细胞群,或用于癌症、炎症和自身免疫疾病的监测和治疗。