Convenient Entry to 18 F-Labeled Amines through the Staudinger Reduction

Autor: Matthias M. Herth, Christoph Denk, E. Johanna L. Stéen, Vladimir Shalgunov, Andreas Kjaer, Hannes Mikula, Jesper L. Kristensen
Rok vydání: 2019
Předmět:
Zdroj: European Journal of Organic Chemistry. 2019:1722-1725
ISSN: 1434-193X
DOI: 10.1002/ejoc.201801457
Popis: Fluorine-18 possesses outstanding decay characteristics for positron emission tomography (PET) imaging. Therefore, it is ideally suited for clinical applications. As such, improved strategies to incorporate fluorine-18 into bioactive molecules are of utmost importance. Indirect 18F-labeling with amino-functionalized synthons is a convenient and versatile approach to synthesize a broad variety of PET tracers. Herein, we report a method to convert 18F-labeled azides to primary amines by means of the Staudinger reduction. Aliphatic and aromatic 18F-labeled azides were converted into the corresponding amines with high conversion yields. The method was easily automated. From a broader perspective, the applied strategy results in two useful synthons from a single precursor and thus increases the flexibility to label diverse chemical scaffolds with minimal synthetic effort.
Databáze: OpenAIRE
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