PYRROLINE-2,5-DIONE-5-'4C The C-glycosyl nucleoside antibiotic, showdomycin, was first isolated from the culture filtrate o f Streptomyces shawdoensis by Nishimura f i . l r 2 ) o f our laboratory. O n the basis o f spectroscopic studies, chemical transformations, and X-ray crystallographic examinat
Synthesis of 14C-labelled myosmine, [2′-14C] -3-(1-pyrrolin-2-yl)pyridine
✍ Scribed by Stefan Tyroller; Wolfgang Zwickenpflug; Elmar Richter
- Publisher
- John Wiley and Sons
- Year
- 2003
- Tongue
- French
- Weight
- 71 KB
- Volume
- 46
- Category
- Article
- ISSN
- 0022-2135
- DOI
- 10.1002/jlcr.678
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✦ Synopsis
Abstract
^14^C‐Labelled myosmine ([2′‐^14^C]‐3‐(1‐pyrrolin‐2‐yl)pyridine) was synthesized for autoradiography studies starting from [carboxyl‐^14^C]‐nicotinic acid by initial esterification of the latter in the presence of 1,1,1‐triethoxyethane. Without any purification the ethyl nicotinate formed was directly reacted with N‐vinyl‐2‐pyrrolidinone in the presence of sodium hydride, yielding ^14^C‐labelled myosmine. The product was purified by silica gel column chromatography. The radiochemical yield was 15% and the specific activity 55.2 mCi/mmol. Copyright © 2003 John Wiley & Sons, Ltd.
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