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Radiosynthesis and Preclinical Investigation of 11 C-Labelled 3-(4,5-Diphenyl-1,3-oxazol-2-yl)propanal Oxime ([ 11 C]SZV 1287).

Authors :
Forgács V
Németh E
Gyuricza B
Kis A
Szabó JP
Mikecz P
Mátyus P
Helyes Z
Horváth ÁI
Kálai T
Trencsényi G
Fekete A
Szikra D
Source :
ChemMedChem [ChemMedChem] 2020 Dec 15; Vol. 15 (24), pp. 2470-2476. Date of Electronic Publication: 2020 Oct 22.
Publication Year :
2020

Abstract

The radiosynthesis, as well as the in vivo and ex vivo biodistribution of the <superscript>11</superscript> C radiolabelled 3-(4,5-diphenyl-1,3-oxazol-2-yl)propanal oxime (6, [ <superscript>11</superscript> C]SZV 1287) are reported. SZV 1287 is a novel semicarbazide-sensitive amine oxidase (SSAO) inhibitor and a promising candidate to be a novel analgesic for the treatment of neuropathic pain. Its radiolabelling was developed via a four-step radiosynthesis which started from the reaction of a Grignard reagent with [ <superscript>11</superscript> C]CO <subscript>2</subscript> to produce [ <superscript>11</superscript> C]oxaprozin (3). In the next step this carboxylic acid 3 was directly reduced to yield the corresponding aldehyde, which was then converted into the oxime. [ <superscript>11</superscript> C]SZV 1287 was administered to male NMRI mice. The animals were examined with dynamic PET/MR imaging for 90 minutes. Biodistribution studies were performed at 10, 30, 60 and 120 minutes post injection. The accumulation of the labelled compound was observed in the brain of the animals. The main excretion pathway was found to be through the liver and intestines. These studies provide preliminary information for pharmacokinetic characterization of the SZV 1287.<br /> (© 2020 Wiley-VCH GmbH.)

Details

Language :
English
ISSN :
1860-7187
Volume :
15
Issue :
24
Database :
MEDLINE
Journal :
ChemMedChem
Publication Type :
Academic Journal
Accession number :
32935925
Full Text :
https://doi.org/10.1002/cmdc.202000389