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Multifunctional Clickable Reagents for Rapid Bioorthogonal Astatination and Radio-Crosslinking

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Journal Chempluschem
Specialty Chemistry
Date 2019 Nov 5
PMID 31681526
Citations 6
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Abstract

In the past decade, several developments have expanded the chemical toolbox for astatination and the preparation of At-labeled radiopharmaceuticals. However, there is still a need for advanced methods for the synthesis of astatinated (bio)molecules to address challenges such as limited in vivo stability. Herein, we report the development of multifunctional At-labeled reagents that can be prepared by applying a modular and versatile click approach for rapid assembly. The introduction of tetrazines as bioorthogonal tags enables rapid radiolabeling and radio-crosslinking, which is demonstrated by steric shielding of At to significantly increase label stability in human blood plasma.

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Uncovering the Key Role of Distortion in Bioorthogonal Tetrazine Tools That Defy the Reactivity/Stability Trade-Off.

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Origin of Increased Reactivity in Rhenium-Mediated Cycloadditions of Tetrazines.

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Multifunctional Clickable Reagents for Rapid Bioorthogonal Astatination and Radio-Crosslinking.

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PMID: 31681526 PMC: 6813637. DOI: 10.1002/cplu.201900114.


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