Volume 54, Issue 45 pp. 13366-13369
Communication

Organomediated Enantioselective 18F Fluorination for PET Applications

Faye Buckingham

Faye Buckingham

University of Oxford, Chemistry Research Laboratory, 12 Mansfield Road, Oxford, OX1 3TA (UK)

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Dr. Anna K. Kirjavainen

Dr. Anna K. Kirjavainen

Turku PET Centre, Radiopharmaceutical Chemistry Laboratory, Kiinamyllynkatu 4–8, 20520 Turku (Finland)

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Dr. Sarita Forsback

Dr. Sarita Forsback

Turku PET Centre, Radiopharmaceutical Chemistry Laboratory, Kiinamyllynkatu 4–8, 20520 Turku (Finland)

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Anna Krzyczmonik

Anna Krzyczmonik

Turku PET Centre, Radiopharmaceutical Chemistry Laboratory, Kiinamyllynkatu 4–8, 20520 Turku (Finland)

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Thomas Keller

Thomas Keller

Turku PET Centre, Radiopharmaceutical Chemistry Laboratory, Kiinamyllynkatu 4–8, 20520 Turku (Finland)

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Dr. Ian M. Newington

Dr. Ian M. Newington

GE Healthcare, The Grove Centre, White Lion Road, Amersham, HP7 9LL (UK)

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Dr. Matthias Glaser

Dr. Matthias Glaser

GE Healthcare, The Grove Centre, White Lion Road, Amersham, HP7 9LL (UK)

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Dr. Sajinder K. Luthra

Dr. Sajinder K. Luthra

GE Healthcare, The Grove Centre, White Lion Road, Amersham, HP7 9LL (UK)

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Prof. Olof Solin

Prof. Olof Solin

Turku PET Centre, Radiopharmaceutical Chemistry Laboratory, Kiinamyllynkatu 4–8, 20520 Turku (Finland)

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Prof. Véronique Gouverneur

Corresponding Author

Prof. Véronique Gouverneur

University of Oxford, Chemistry Research Laboratory, 12 Mansfield Road, Oxford, OX1 3TA (UK)

University of Oxford, Chemistry Research Laboratory, 12 Mansfield Road, Oxford, OX1 3TA (UK)Search for more papers by this author
First published: 11 September 2015
Citations: 51

Graphical Abstract

PET molecules: A metal-free asymmetric 18F-labeling reaction for an aliphatic CH bond, employing a chiral imidazolidinone as the organomediator and N-[18F]fluorobenzenesulfonimide ([18F]NFSI) as the 18F source, is reported. The method is used to prepare the 18F-labeled positron emission tomography (PET) radiotracer (2S,4S)-4-[18F]fluoroglutamic acid.

Abstract

The first organomediated asymmetric 18F fluorination has been accomplished using a chiral imidazolidinone and [18F]N-fluorobenzenesulfonimide. The method provides access to enantioenriched 18F-labeled α-fluoroaldehydes (>90 % ee), which are versatile chiral 18F synthons for the synthesis of radiotracers. The utility of this process is demonstrated with the synthesis of the PET (positron emission tomography) tracer (2S,4S)-4-[18F]fluoroglutamic acid.

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