W e describe here t h e synthesis of twoC1lC-methylJlabelled analogs of choline and the influence of t h e solvent, addition of a base, and reaction t i m e on t h e radiochemical yield. The reactions produced equally good yields in methanol and acetonitrile and r e a f p d maximum radiochemical yi
Synthesis of 11C-labelled choline
✍ Scribed by Mirko Diksic; Y. Lucas Yamamoto; William Feindel
- Publisher
- John Wiley and Sons
- Year
- 1984
- Tongue
- French
- Weight
- 241 KB
- Volume
- 21
- Category
- Article
- ISSN
- 0022-2135
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✦ Synopsis
Abstract
We report the synthesis of ^11^C‐labelled choline using the reaction of “nocarrier‐added” ^11^C‐labelled methyliodide and 2‐amino‐(N,N‐dimethyl)‐ethanol. After determining the optimum temperature and duration for the reaction, we achieved a radiochemical yield of about 30% and the radioactivity levels needed for PET studies in humans.
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