Fluorosugars: An improved synthesis of the 2,3,4-trideoxy-2,3,4-trifluoro hexose analogue of d-glucose
摘要:
An improved synthetic route for the synthesis of the 2,3,4-trideoxy-2,3,4-trifluoro hexose analogue of D-glucose has been developed. The newly reported synthesis features improved fluorination reactions and simpler chromatographic separations. (C) 2013 Published by Elsevier B.V.
Addressing the Structural Complexity of Fluorinated Glucose Analogues: Insight into Lipophilicities and Solvation Effects
作者:Jacob St‐Gelais、Émilie Côté、Danny Lainé、Paul A. Johnson、Denis Giguère
DOI:10.1002/chem.202002825
日期:2020.10.21
glucopyranose analogues at positions C‐2, C‐3, C‐4, and C‐6. This systematic investigation allowed us to perform direct comparison of 19F resonances of fluorinatedglucoseanalogues and also to determine their lipophilicities. Compounds with a fluorine atom at C‐6 are usually the most hydrophilic, whereas those with vicinal polyfluorinated motifs are the most lipophilic. Finally, the solvation energies
In this work, we have developed synthetic routes for novel trifluorinated glucopyranose analogues using a Chiron approach. This strategy used inexpensive levoglucosan as a starting material, and we achieved a microwave glycosylation method as a key step. All analogues adopted standard 4C1 glucopyranose conformations, and a gauche–gauche conformation for the fluoromethyl group (C5–C6 linkage) was ascertained
在这项工作中,我们已经使用Chiron方法开发了新型三氟吡喃葡萄糖类似物的合成途径。该策略使用廉价的左旋葡聚糖作为起始原料,我们实现了微波糖基化方法作为关键步骤。所有类似物均采用标准的4 C 1吡喃葡萄糖构象,并确定了在C-6处带有氟原子的同类物的氟甲基(G5-C6键联)构象-构象构象。最后,通过基于19 F NMR光谱的log P测定方法评估了三氟化葡萄糖类似物的亲脂性 。
Fluorosugars: synthesis of the 2,3,4-trideoxy-2,3,4-trifluoro hexose analogues of d-glucose and d-altrose and assessment of their erythrocyte transmembrane transport
作者:Stefano Bresciani、Tomas Lebl、Alexandra M. Z. Slawin、David O'Hagan
DOI:10.1039/c0cc01128b
日期:——
The 2,3,4-trideoxy-2,3,4-trifluoro hexose analogues of D-glucose and D-altrose were prepared and characterised and these novel sugar analogues were explored by 2D-19F-EXSY NMR for their potential to cross erythrocyte (red blood cell) membranes, by comparison with the well known capacity of erythrocytes to transport D-glucose.