Evidence map›Paper›PMID 26478840›Full record

ArticleChemistryOpen2015

A Practical One-Pot Synthesis of Positron Emission Tomography (PET) Tracers via Nickel-Mediated Radiofluorination.

Boris D Zlatopolskiy, Johannes Zischler, Elizaveta A Urusova, Heike Endepols, Elena Kordys, Holm Frauendorf, Felix M Mottaghy, Bernd Neumaier

Abstract read
In one paragraph

Article in ChemistryOpen, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

12 citing papers in PubMed.

  1. Nucleophilic Radiofluorination Using Tri-Molecules (Basel, Switzerland) · 2022
    Article
  2. Closing the gap betweenEJNMMI radiopharmacy and chemistry · 2021
    Review
  3. Production of 6-l-[Molecules (Basel, Switzerland) · 2021
    Article
  4. Review
  5. Review
  6. Fast and efficient copper-mediatedEJNMMI radiopharmacy and chemistry · 2019
    Article
  7. Alcohol-Supported Cu-MediatedMolecules (Basel, Switzerland) · 2019
    Article
  8. Radiosynthesis of the norepinephrine transporter tracer [Journal of labelled compounds & radiopharmaceuticals · 2019
    Article
  9. Chemistry for Positron Emission Tomography: Recent Advances inAngewandte Chemie (International ed. in English) · 2019
    Review
  10. A Practical Method for the Preparation ofMolecules (Basel, Switzerland) · 2017
    Article
  11. Article
  12. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors.

Boris D ZlatopolskiyInstitute of Radiochemistry & Experimental Molecular Imaging, University Clinic Cologne Kerpener Str. 62, 50937, Cologne, Germany ; Max Planck Institute for Metabolism Research Gleueler Str. 50, 50931, Cologne, Germany.
Johannes ZischlerInstitute of Radiochemistry & Experimental Molecular Imaging, University Clinic Cologne Kerpener Str. 62, 50937, Cologne, Germany ; Max Planck Institute for Metabolism Research Gleueler Str. 50, 50931, Cologne, Germany.
Elizaveta A UrusovaInstitute of Radiochemistry & Experimental Molecular Imaging, University Clinic Cologne Kerpener Str. 62, 50937, Cologne, Germany ; Max Planck Institute for Metabolism Research Gleueler Str. 50, 50931, Cologne, Germany ; Clinic of Nuclear Medicine, RWTH Aachen University Pauwelsstraße 30, 52074, Aachen, Germany.
Heike EndepolsInstitute of Radiochemistry & Experimental Molecular Imaging, University Clinic Cologne Kerpener Str. 62, 50937, Cologne, Germany ; Max Planck Institute for Metabolism Research Gleueler Str. 50, 50931, Cologne, Germany.
Elena KordysInstitute of Radiochemistry & Experimental Molecular Imaging, University Clinic Cologne Kerpener Str. 62, 50937, Cologne, Germany ; Max Planck Institute for Metabolism Research Gleueler Str. 50, 50931, Cologne, Germany.
Holm FrauendorfInstitute of Organic & Biomolecular Chemistry, Georg-August University Tammannstr. 2, 37077, Göttingen, Germany.
Felix M MottaghyClinic of Nuclear Medicine, RWTH Aachen University Pauwelsstraße 30, 52074, Aachen, Germany ; Department of Nuclear Medicine, Maastricht University Medical Center PO Box 616, 6200, MD Maastricht, The Netherlands.
Bernd NeumaierInstitute of Radiochemistry & Experimental Molecular Imaging, University Clinic Cologne Kerpener Str. 62, 50937, Cologne, Germany ; Max Planck Institute for Metabolism Research Gleueler Str. 50, 50931, Cologne, Germany.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Recently a novel method for the preparation of (18)F-labeled arenes via oxidative [(18)F]fluorination of easily accessible and sufficiently stable nickel complexes with [(18)F]fluoride under exceptionally mild reaction conditions was published. The suitability of this procedure for the routine preparation of clinically relevant positron emission tomography (PET) tracers, 6-[(18)F]fluorodopamine (6-[(18)F]FDA), 6-[(18)F]fluoro-l-DOPA (6-[(18)F]FDOPA) and 6-[(18)F]fluoro-m-tyrosine (6-[(18)F]FMT), was evaluated. The originally published base-free method was inoperative. However, a "low base" protocol afforded protected radiolabeled intermediates in radiochemical conversions (RCCs) of 5-18 %. The subsequent deprotection step proceeded almost quantitatively (>95 %). The simple one-pot two-step procedure allowed the preparation of clinical doses of 6-[(18)F]FDA and 6-[(18)F]FDOPA within 50 min (12 and 7 % radiochemical yield, respectively). In an unilateral rat model of Parkinsons disease, 6-[(18)F]FDOPA with high specific activity (175 GBq μmol(-1)) prepared using the described nickel-mediated radiofluorination was compared to 6-[(18)F]FDOPA with low specific activity (30 MBq μmol(-1)) produced via conventional electrophilic radiofluorination. Unexpectedly both tracer variants displayed very similar in vivo properties with respect to signal-to-noise ratio and brain distribution, and consequently, the quality of the obtained PET images was almost identical.

Indexed as

[18F]fluoridenucleophilic aromatic substitutionpositron emission tomography (PET)radiopharmaceuticalsradiosynthesis

Identifiers

PMID26478840
PMCPMC4603406

What OpenQuestion holds

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.