BmMARY N-Fluoropyridinium triflate was labelled with 18P proceeding through N-trimethylsilylpyridinium triflate and [ 18F] F2 diluted to 1% in Ne. A typical experiment afforded this new fluorine-18 transfer reagent with up to 46% radiochemical yield. The specific activity of 18F-labelled N-fluoropyr
Preparation of 18F-labelled 5-fluorouracil of very high purity
✍ Scribed by Franz Oberdorfer; Evelyn Hofmann; Wolfgang Maier-Borst
- Publisher
- John Wiley and Sons
- Year
- 1989
- Tongue
- French
- Weight
- 413 KB
- Volume
- 27
- Category
- Article
- ISSN
- 0022-2135
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✦ Synopsis
5-[18F]
Fluorouracil was prepared by direct fluorination of uracil in acetic acid using [18F]F2 diluted in neon. The labelled product was obtained with a purity of 299% following preparative HPLC. Quality control consisted of two different and improved HPLC procedures combined with high resolution NMR spectroscopy for analyzing directly the HPLC elution peaks. A final formulation contained typically 4.8.10' Bq 5-[ "F] f luorouracil with a specific activity of 1.14.
Ci/pM.
📜 SIMILAR VOLUMES
Isotopic exchange of hydrogen in a system of s~lvent-water-~H was used to prepare 5-Juoroorotic a ~i d -~H ( G ) which was decarboxylated and the hydrogen-3H removed from labile bonds to yield 5'-Juorouracil-6-3H. It was found in tracer experiments that a suitable solvent for the isotopic exchange o
S e c t i o n o f R a d i o l o g y a n d N u c l e a r M e d i c i n e and Department o f C h e m i s t r y , H a m i l t o n , O n t a r i o , Canada, L8N 325 SUHMARY R e a c t i o n o f d i l u t e [ F -l 8 ] f l u o r i n e gas w i t h e i t h e r m e l g t o n i n o r 5 -h y d r o x y -t r y p
## Abstract Synthesis of 2′‐deoxy‐2′‐[^18^F]fluoro‐5‐methyl‐1‐__β__‐D‐arabinofuranosyluracil ([^18^F]‐FMAU) is reported. 2‐Deoxy‐2‐[^18^F]fluoro‐1,3,5‐tri‐O‐benzoyl‐__α__‐D‐arabinofuranose **2** was prepared by the reaction of the respective triflate **1** with tetrabutylammonium[^18^F]fluoride. Th