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Updated: Jun 24, 2025

18F-Labeling of Radiotracers Functionalized with a Silicon Fluoride Acceptor SiFA for Positron Emission Tomography
Published on: January 11, 2020
Sulfur fluoride exchange
Joshua A Homer1, Long Xu2,3, Namitharan Kayambu4
1Cancer Center, Cold Spring Harbor Laboratory, 1 Bungtown Road, NY 11724, USA.
Sulfur Fluoride Exchange (SuFEx) is a powerful click reaction transforming various scientific fields. This primer explores its mechanisms, applications in drug development and polymer science, and future potential.
Area of Science:
- Chemical Biology
- Polymer Science
- Medicinal Chemistry
Background:
- Sulfur Fluoride Exchange (SuFEx) has emerged as a highly efficient click reaction.
- Its versatility has led to significant advancements across multiple scientific disciplines.
Purpose of the Study:
- To provide a comprehensive overview of Sulfur Fluoride Exchange (SuFEx) click chemistry.
- To detail the operational principles, catalysis, and key components of SuFEx reactions.
- To highlight the diverse applications and future directions of SuFEx.
Main Methods:
- Review of fundamental SuFEx reaction mechanisms.
- Exploration of catalytic systems enabling SuFEx transformations.
- Analysis of SuFExable connective hubs and their roles.
- Case studies of SuFEx applications in drug discovery, polymer synthesis, and biochemistry.
Main Results:
- SuFEx reactions are characterized by high efficiency, selectivity, and mild reaction conditions.
- SuFEx has enabled the development of novel polymers and complex biomolecules.
- Key applications include bioconjugation, materials science, and pharmaceutical development.
Conclusions:
- SuFEx represents a powerful and versatile tool in modern synthetic chemistry.
- Its continued development promises further innovation in drug design, materials science, and beyond.
- Understanding SuFEx principles is crucial for leveraging its full potential in research and development.
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