18F-Labeled Silicon-Based Fluoride Acceptors : Potential Opportunities for Novel Positron Emitting Radiopharmaceuticals
Joint Authors
Schirrmacher, Ralf
Bernard-Gauthier, Vadim
Schirrmacher, Esther
Wängler, Bjoern
Wängler, Carmen
Kostikov, Alexey
Jurkschat, Klaus
Source
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-20, 20 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-07-23
Country of Publication
Egypt
No. of Pages
20
Main Subjects
Abstract EN
Background.
Over the recent years, radiopharmaceutical chemistry has experienced a wide variety of innovative pushes towards finding both novel and unconventional radiochemical methods to introduce fluorine-18 into radiotracers for positron emission tomography (PET).
These “nonclassical” labeling methodologies based on silicon-, boron-, and aluminium-18F chemistry deviate from commonplace bonding of an [18F]fluorine atom (18F) to either an aliphatic or aromatic carbon atom.
One method in particular, the silicon-fluoride-acceptor isotopic exchange (SiFA-IE) approach, invalidates a dogma in radiochemistry that has been widely accepted for many years: the inability to obtain radiopharmaceuticals of high specific activity (SA) via simple IE.
Methodology.
The most advantageous feature of IE labeling in general is that labeling precursor and labeled radiotracer are chemically identical, eliminating the need to separate the radiotracer from its precursor.
SiFA-IE chemistry proceeds in dipolar aprotic solvents at room temperature and below, entirely avoiding the formation of radioactive side products during the IE.
Scope of Review.
A great plethora of different SiFA species have been reported in the literature ranging from small prosthetic groups and other compounds of low molecular weight to labeled peptides and most recently affibody molecules.
Conclusions.
The literature over the last years (from 2006 to 2014) shows unambiguously that SiFA-IE and other silicon-based fluoride acceptor strategies relying on 18F− leaving group substitutions have the potential to become a valuable addition to radiochemistry.
American Psychological Association (APA)
Bernard-Gauthier, Vadim& Wängler, Carmen& Schirrmacher, Esther& Kostikov, Alexey& Jurkschat, Klaus& Wängler, Bjoern…[et al.]. 2014. 18F-Labeled Silicon-Based Fluoride Acceptors : Potential Opportunities for Novel Positron Emitting Radiopharmaceuticals. BioMed Research International،Vol. 2014, no. 2014, pp.1-20.
https://search.emarefa.net/detail/BIM-472873
Modern Language Association (MLA)
Bernard-Gauthier, Vadim…[et al.]. 18F-Labeled Silicon-Based Fluoride Acceptors : Potential Opportunities for Novel Positron Emitting Radiopharmaceuticals. BioMed Research International No. 2014 (2014), pp.1-20.
https://search.emarefa.net/detail/BIM-472873
American Medical Association (AMA)
Bernard-Gauthier, Vadim& Wängler, Carmen& Schirrmacher, Esther& Kostikov, Alexey& Jurkschat, Klaus& Wängler, Bjoern…[et al.]. 18F-Labeled Silicon-Based Fluoride Acceptors : Potential Opportunities for Novel Positron Emitting Radiopharmaceuticals. BioMed Research International. 2014. Vol. 2014, no. 2014, pp.1-20.
https://search.emarefa.net/detail/BIM-472873
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-472873