## Abstract The syntheses of monobromohexestrol and 17α‐bromoethynylestradiol are described as examples of bromination of phenolic and ethynyl moieties using Chloramine‐T. This technique represents a unique method of producing no‐carrier‐added radiobromoethynylderivatives. However, more efficient c
Preparation of no-carrier-added 4-[131i]iodoantipyrine using chloramine-T
✍ Scribed by Thomas E. Boothe; Ronald D. Finn; Manhar M. Vora; J Paresh Kothari; Ali M. Emran
- Publisher
- John Wiley and Sons
- Year
- 1986
- Tongue
- French
- Weight
- 259 KB
- Volume
- 23
- Category
- Article
- ISSN
- 0022-2135
No coin nor oath required. For personal study only.
✦ Synopsis
The blood f l o w reagent 4-iodoantipyrine, l a b e l l e d w i t h 13'1 o r lZ5I, was prepared by a l l o w i n g aqueous a n t i p y r i n e t o r e a c t w i t h e i t h e r no-carrier-added 1311o r lZ5I-i n t h e presence o f c h l orami ne-T. P u r i f i c a t i o n o f 4-[ 13'I]i odoanti p y r i ne was performed by reversed-phase 1 i q u i d chromatography and r e s u l t e d i n a 99?1% radiochemically pure product i n an o v e r a l l 90% y i e l d . The use o f iodogen f o r o x i d a t i o n o f t h e r a d i o i o d i n e was a l s o investigated.
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## Abstract The radiosyntheses of 5‐(4′‐[^18^F]fluorophenyl)‐uridine **[^18^F]‐11** and 5‐(4′‐[^18^F]fluorophenyl)‐2′‐deoxy‐uridine **[^18^F]‐12** are described. The 5‐(4′‐[^18^F]fluoro‐phenyl)‐substituted nucleosides were prepared via a Stille cross‐coupling reaction with 4‐[^18^F]fluoroiodobenzen