The double labelled lignan precursors [1,2-13 C 2 ]coniferin and the glucoside of [1,2-13 C 2 ]ferulic acid were prepared by classical synthetic methods. Pure double labelled lignan precursors could only be obtained after separation from their contaminating Z-isomers and dihydro by-products by high-
Synthesis and purification of [2-13C]-5-fluorouracil
✍ Scribed by Huzaifa S. Rangwala; John W. Giraldes; Vadim J. Gurvich
- Publisher
- John Wiley and Sons
- Year
- 2011
- Tongue
- French
- Weight
- 159 KB
- Volume
- 54
- Category
- Article
- ISSN
- 0022-2135
No coin nor oath required. For personal study only.
✦ Synopsis
Abstract
[2‐^13^C]‐5‐Fluoropyrimidine‐2,4(__1__H,__3__H)‐dione ([2‐^13^C]‐5‐fluorouracil or [2‐^13^C]‐5‐FU) is a potential diagnostic agent for measuring 5‐FU‐induced toxicity in cancer patients. It was prepared and purified with isotopic and chemical purity of>99% on a multigram scale in a two‐step synthesis from [^13^C]‐urea. Preparative separation of [2‐^13^C]‐FU and [2‐^13^C]‐uracil was carried out by automated medium pressure silica gel column chromatography. The method is applicable to a broader range of 5‐FU isotopic analogs derived from labeled uracil. Copyright © 2011 John Wiley & Sons, Ltd.
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