Synthesis and stability of sulfur-35 labelled 4-ethylbicyclothiophosphateстатья
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Дата последнего поиска статьи во внешних источниках: 28 мая 2015 г.
Авторы:
Tkachenko S.E. ,
Trofimova T.P. ,
Fedoseev V.M.
Журнал:
Chemistry of Heterocyclic Compounds
Том:
35
Номер:
8
Год издания:
1999
Издательство:
Kluwer Academic/Plenum Publishers
Местоположение издательства:
United States
Первая страница:
973
Последняя страница:
977
Аннотация:
Different synthetic routes to the preparation of 4-ethyl-2,6,7-trioxa-1-phosphabicyclo[2,2,2]octane-1-thioxide labelled with sulfur-35 have been investigated since it is of considerable interest as radioligand for neurochemistry. The thiophosphate was successfully synthesized by sulfuration of the corresponding bicyclophosphite by elemental sulfur-3 5, however the radiochemical purity of the material obtained in this way proves to be low. Convenient methods for synthesis of the thioxide from [35S] thiourea, based on the results of the autoradiolysis of the starting [35S] thiourea, has been discovered giving rise to thioxide with high radiochemical purity. The autoradiolytic stability of the labelled thiophosphate has been studied. ©1999 KluwerAcademic/Plenum Publishers.
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