1. Radiosynthesis and Preclinical Investigation of 11 C‐Labelled 3‐(4,5‐Diphenyl‐1,3‐oxazol‐2‐yl)propanal Oxime ([ 11 C]SZV 1287)
- Author
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Tamás Kálai, Barbara Gyuricza, Viktória Forgács, György Trencsényi, Ádám Horváth, Enikő Németh, Judit P. Szabó, Péter Mátyus, Zsuzsanna Helyes, Adrienn Kis, Pál Mikecz, Anikó Fekete, and Dezső Szikra
- Subjects
Pharmacology ,chemistry.chemical_classification ,Biodistribution ,Amine oxidase ,010405 organic chemistry ,Carboxylic acid ,Organic Chemistry ,Radiosynthesis ,Oxime ,01 natural sciences ,Biochemistry ,Aldehyde ,Medicinal chemistry ,0104 chemical sciences ,010404 medicinal & biomolecular chemistry ,chemistry.chemical_compound ,chemistry ,In vivo ,Drug Discovery ,Molecular Medicine ,General Pharmacology, Toxicology and Pharmaceutics ,Ex vivo - Abstract
The radiosynthesis, as well as the in vivo and ex vivo biodistribution of the 11 C radiolabelled 3-(4,5-diphenyl-1,3-oxazol-2-yl)propanal oxime (6, [11 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 [11 C]CO2 to produce [11 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. [11 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.
- Published
- 2020
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