| Literature DB >> 10773544 |
M Namavari1, J R Barrio, T Toyokuni, S S Gambhir, S R Cherry, H R Herschman, M E Phelps, N Satyamurthy1.
Abstract
A new method for the preparation of 8-[(18)F]fluoroguanine derivatives based on a direct radiofluorination reaction has been developed. The radiofluorination of ganciclovir (1a) with [(18)F]F(2) was carried out in absolute ethanol in the presence of tetraethylammonium hydroxide at room temperature to give 8-[(18)F]fluoroganciclovir (3a) in an approximately 1% radiochemical yield. Similarly, 8-[(18)F]fluoropenciclovir (3b), 8-[(18)F]fluoroacyclovir (3c), and 8-[(18)F]fluoroguanosine (3d) were synthesized from penciclovir (1b), acyclovir (1c), and guanosine (1d), respectively, using [(18)F]F(2). The structural analyses of the final products (3a, 3b, 3c, and 3d) were carried out after (18)F decay by (1)H, (13)C, and (19)F nuclear magnetic resonance and high resolution mass spectroscopy.Entities:
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Year: 2000 PMID: 10773544 DOI: 10.1016/s0969-8051(99)00095-5
Source DB: PubMed Journal: Nucl Med Biol ISSN: 0969-8051 Impact factor: 2.408