Simplified synthesis of N-(3-[18F]fluoropropyl)-2β- carbomethoxy -3β - (4 -fluorophenyl )nortropane ([18F]β-CFT-FP) using [18F]fluoropropyl tosylate as the labelling reagent
In: Journal of labelled compounds & radiopharmaceuticals, Jg. 48 (2005), Heft 6, S. 463-471
Online
academicJournal
- print, 32 ref
Zugriff:
A synthesis method has been developed for the labelling of N-(3-[18F]fluoropropyl)- 2β-carbomethoxy-3β-(4-fluorophenyl)nortropane ([18F]β-CFT-FP), a potential radioligand for visualization of the dopamine transporters by positron emission tomography. The two-step synthesis includes preparation of [18F]fluoropropyl tosylate and its use without purification in the fluoroalkylation of 2β-carbomethoxy-3β-(4-fluorophenyl)nortropane (nor-β-CFT). The final product is purified by HPLC. Optimization of the two synthesis steps resulted in a greater than 30% radiochemical yield of [18F]β-CFT-FP (decay corrected to end of bombardment). The synthesis time including HPLC-purification was approximately 90min. The radiochemical purity of the final product was higher than 99% and the specific radioactivity at the end of synthesis was typically 20 GBq/umol. In comparison to alkylation by [18F]fluoropropyl bromide, the procedure described here results in an improved overall radiochemical yield of [18F]β-CFT-FP in a shorter time.
Titel: |
Simplified synthesis of N-(3-[18F]fluoropropyl)-2β- carbomethoxy -3β - (4 -fluorophenyl )nortropane ([18F]β-CFT-FP) using [18F]fluoropropyl tosylate as the labelling reagent
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Autor/in / Beteiligte Person: | KOIVULA, Teija ; PERHOLA, Outi ; KÄMÄRÄINEN, Eeva-Liisa ; LIPPONEN, Tiina ; VEPSÄLÄINEN, Jouko ; SOLIN, Olof |
Link: | |
Zeitschrift: | Journal of labelled compounds & radiopharmaceuticals, Jg. 48 (2005), Heft 6, S. 463-471 |
Veröffentlichung: | Chichester; New York, NY: Wiley, 2005 |
Medientyp: | academicJournal |
Umfang: | print, 32 ref |
ISSN: | 0362-4803 (print) |
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