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Klein PJ, Chomet M, Metaxas A, Christiaans JAM, Kooijman E, Schuit RC, Lammertsma AA, van Berckel BNM, Windhorst AD. Synthesis, radiolabeling and evaluation of novel amine guanidine derivatives as potential positron emission tomography tracers for the ion channel of the N-methyl-d-aspartate receptor. Eur J Med Chem 2016; 118:143-60. [PMID: 27128179 DOI: 10.1016/j.ejmech.2016.04.022] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2015] [Revised: 04/06/2016] [Accepted: 04/07/2016] [Indexed: 11/25/2022]
Abstract
The N-Methyl-d-Aspartate receptor (NMDAR) is involved in many neurological and psychiatric disorders including Alzheimer's disease and schizophrenia. The aim of this study was to develop a positron emission tomography (PET) ligand to assess the bio-availability of the NMDAR ion channel in vivo. A series of tri-N-substituted diarylguanidines was synthesized and their in vitro binding affinities for the NMDAR ion channel assessed in rat forebrain membrane fractions. Compounds 21, 23 and 26 were radiolabeled with either carbon-11 or fluorine-18 and ex vivo biodistribution and metabolite studies were performed in Wistar rats. Biodistribution studies showed high uptake especially in prefrontal cortex and lowest uptake in cerebellum. Pre-treatment with MK-801, however, did not decrease uptake of the radiolabeled ligands. In addition, all three ligands showed fast metabolism.
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Affiliation(s)
- Pieter J Klein
- Department of Radiology & Nuclear Medicine, Neuroscience Campus Amsterdam, VU University Medical Center, P.O. Box 7057, 1007 MB Amsterdam, The Netherlands.
| | - Marion Chomet
- Department of Radiology & Nuclear Medicine, Neuroscience Campus Amsterdam, VU University Medical Center, P.O. Box 7057, 1007 MB Amsterdam, The Netherlands
| | - Athanasios Metaxas
- Department of Radiology & Nuclear Medicine, Neuroscience Campus Amsterdam, VU University Medical Center, P.O. Box 7057, 1007 MB Amsterdam, The Netherlands
| | - Johannes A M Christiaans
- Department of Radiology & Nuclear Medicine, Neuroscience Campus Amsterdam, VU University Medical Center, P.O. Box 7057, 1007 MB Amsterdam, The Netherlands
| | - Esther Kooijman
- Department of Radiology & Nuclear Medicine, Neuroscience Campus Amsterdam, VU University Medical Center, P.O. Box 7057, 1007 MB Amsterdam, The Netherlands
| | - Robert C Schuit
- Department of Radiology & Nuclear Medicine, Neuroscience Campus Amsterdam, VU University Medical Center, P.O. Box 7057, 1007 MB Amsterdam, The Netherlands
| | - Adriaan A Lammertsma
- Department of Radiology & Nuclear Medicine, Neuroscience Campus Amsterdam, VU University Medical Center, P.O. Box 7057, 1007 MB Amsterdam, The Netherlands
| | - Bart N M van Berckel
- Department of Radiology & Nuclear Medicine, Neuroscience Campus Amsterdam, VU University Medical Center, P.O. Box 7057, 1007 MB Amsterdam, The Netherlands
| | - Albert D Windhorst
- Department of Radiology & Nuclear Medicine, Neuroscience Campus Amsterdam, VU University Medical Center, P.O. Box 7057, 1007 MB Amsterdam, The Netherlands
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Cortes-Salva M, Nguyen BL, Cuevas J, Pennypacker KR, Antilla JC. Copper-Catalyzed Guanidinylation of Aryl Iodides: The Formation of N,N′-Disubstituted Guanidines. Org Lett 2010; 12:1316-9. [DOI: 10.1021/ol1002175] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Michelle Cortes-Salva
- Department of Chemistry, University of South Florida, 4202 East Fowler Avenue CHE 205A, Tampa, Florida 33620, and Department of Molecular Pharmacology and Physiology, College of Medicine, University of South Florida, 12901 Bruce B. Downs Blvd., Box 8, Tampa, Florida 33612
| | - Be-Lan Nguyen
- Department of Chemistry, University of South Florida, 4202 East Fowler Avenue CHE 205A, Tampa, Florida 33620, and Department of Molecular Pharmacology and Physiology, College of Medicine, University of South Florida, 12901 Bruce B. Downs Blvd., Box 8, Tampa, Florida 33612
| | - Javier Cuevas
- Department of Chemistry, University of South Florida, 4202 East Fowler Avenue CHE 205A, Tampa, Florida 33620, and Department of Molecular Pharmacology and Physiology, College of Medicine, University of South Florida, 12901 Bruce B. Downs Blvd., Box 8, Tampa, Florida 33612
| | - Keith R. Pennypacker
- Department of Chemistry, University of South Florida, 4202 East Fowler Avenue CHE 205A, Tampa, Florida 33620, and Department of Molecular Pharmacology and Physiology, College of Medicine, University of South Florida, 12901 Bruce B. Downs Blvd., Box 8, Tampa, Florida 33612
| | - Jon C. Antilla
- Department of Chemistry, University of South Florida, 4202 East Fowler Avenue CHE 205A, Tampa, Florida 33620, and Department of Molecular Pharmacology and Physiology, College of Medicine, University of South Florida, 12901 Bruce B. Downs Blvd., Box 8, Tampa, Florida 33612
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