Multifunctional Clickable Reagents for Rapid Bioorthogonal Astatination and Radio-Crosslinking

• In the past decade, several developments have expanded the chemical toolbox for astatination and the preparation of 211 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 211 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 211 At to significantly increase label stability in human blood plasma. © 2019 The Authors. Published by Wiley-VCH Verlag GmbH & Co. KGaA.

Ämnesord

NATURVETENSKAP  -- Kemi -- Analytisk kemi (hsv//swe)

NATURAL SCIENCES  -- Chemical Sciences -- Analytical Chemistry (hsv//eng)

MEDICIN OCH HÄLSOVETENSKAP  -- Klinisk medicin -- Radiologi och bildbehandling (hsv//swe)

MEDICAL AND HEALTH SCIENCES  -- Clinical Medicine -- Radiology, Nuclear Medicine and Medical Imaging (hsv//eng)

Nyckelord

bioorthogonal chemistry

click chemistry

multicomponent reactions

radiochemistry

radiolabeling

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