[11C]-labeling of some caffeine derivatives for mapping adenosine A2a receptors by PET technique

Autor: I. Boros, Teréz Márián, Lajos Trón, Szabolcs Lehel, Géza Horváth, Zoltán Kovács, J. Szentmiklósi, Gábor Tóth
Rok vydání: 1999
Předmět:
Zdroj: Journal of Radioanalytical and Nuclear Chemistry. 242:309-312
ISSN: 1588-2780
0236-5731
DOI: 10.1007/bf02345557
Popis: [11C]-labeled form of ten A2a adenosine receptor specific 8-styryl-7-methyl-xanthine derivatives ([11C]-caffeines) were synthesised by N-methylation of the corresponding 8-styryl-xanthine derivatives using [11C]-methyl iodide in optimized reaction conditions. The results show that the [11C]-methylations take place with excellent radiochemical yields (35–93%), and can be utilised easily in online preparations. These labeled ligands may facilitate the positron emission tomographic (PET) investigation of adenosine A2a receptors.
Databáze: OpenAIRE