ヌクレオフィール触媒による再生性グリコシル化
Swati S Nigudkar1, Keith J Stine, Alexei V Demchenko
1Department of Chemistry and Biochemistry, University of Missouri-St. Louis , One University Boulevard, St. Louis, Missouri 63121, United States.
Journal of the American Chemical Society
|January 8, 2014
まとめ
この研究では,3,3-difluoroxindole (HOFox) -mediated glycosylation (3,3-difluoroxindole (HOFox) -mediated glycosylation) が導入され,これは,glycosylドナーを in situ 合成するための新しい方法である. 重要なイノベーションは,これらのドナーの再生合成と活性化であり,効率的なグリコシル化反応を可能にします.
科学分野:
- 有機化学 オーガニック・ケミストリー
- 炭水化物化学 炭水化物の化学
背景:
- グライコシレーションは,炭水化物の化学における重要な反応である.
- 既存の方法は,多くの場合,アクティベーターまたはドナーのステキオメトリック量を必要とします.
- 触媒的および効率的なグリコシル化方法の開発が進行中です.
研究 の 目的:
- 3,3-difluoroxindole (HOFox) によって媒介された新しい触媒性グリコシレーション法について説明する.
- グリコシルドナーの in situ 合成と再生活性化を実証する.
主な方法:
- 3,3-difluoroxindole (HOFox) をグリコシル化のための媒介剤として利用しました.
- ドナーの合成と活性化のために,核愛性触媒の原理を採用した.
- 3,3-difluoro-3H-indol-2-yl (OFox) イミダートドナーの触媒量とルイス酸活性化剤で反応を行った.
主要な成果:
- 3,3-difluoro-3H-indol-2-yl (OFox) グリコシルドナーのインサイト合成を達成しました.
- OFox imidateドナーの再生活性化が実証されています.
- ドナーは,グリコシル受容体が反応するまで,消費時に再生された.
結論:
- HOFox媒介によるグリコシライゼーションは,グリコシド結合形成にユニークな触媒的アプローチを提供します.
- ドナー合成と活性化の再生性により,反応効率が向上する.
- この方法は,触媒性グリコシル化のための新しい経路を提供します.
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