A Diels-Alder adduct of a trans-cyclooctene with a tetrazine is provided, wherein the adduct bears a substituent labeled with a radionuclide. A method of producing a PET or other image of an organ in an animal or human includes forming the Diels-Alder adduct in the animal or human. Trans-cyclooctenes and tetrazines suitable for preparing the adducts are provided.
提供了一种具有放射性核素标记取代基的
顺-环辛烯和四氮杂环的Diels-Alder加合物,其中该加合物在动物或人体内形成。一种制备动物或人体器官PET或其他图像的方法包括在动物或人体内形成Diels-Alder加合物。提供了适用于制备加合物的
顺-环辛烯和四氮杂环。