Cesarec S, Robson JA, Carroll LS, Aboagye EO, Spivey AC. Direct incorporation of [
18F] into Aliphatic Systems: A promising
Mn-catalysed Labelling Technique for PET Imaging.
Curr Radiopharm 2021;
14:101-106. [PMID:
32895047 DOI:
10.2174/1874471013666200907115026]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2020] [Revised: 08/04/2020] [Accepted: 08/05/2020] [Indexed: 11/22/2022]
Abstract
BACKGROUND
One of the challenges in positron emission tomography (PET) is labelling complex aliphatic molecules.
OBJECTIVE
This study aimed to develop a method of metal-catalysed radiofluorination that is site-selective and works in moderate to good yields under facile conditions.
METHODS
Herein, we report on the optimisation of an aliphatic C-H to C-18F bond transformation catalysed by a Mn(porphyrin) complex.
RESULTS
The successful oxidation of 11 aliphatic molecules, including progesterone, is reported. Radiochemical Incorporations (RCIs) up to 69% were achieved within 60 min without the need for pre-activation or special equipment.
CONCLUSION
The method features mild conditions (60 °C) and promises to constitute a valuable approach to labelling of biomolecules and drug substances.
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