阴离子基团之间的不同间距:获得基于噻吩的配体以区分 β-淀粉样蛋白或 Tau 多晶型聚集体的基本化学决定因素
摘要:
蛋白质聚集体的积累与许多破坏性神经退行性疾病有关,并且已经提出存在不同的聚集形态型来解释这些疾病报告的异质表型。因此,开发能够区分这些形态类型的分子探针是必不可少的。我们报告了一种阴离子四聚体低聚噻吩化合物,可用于对不同年龄的转基因小鼠中存在的不同形态的 β-淀粉样蛋白或 tau 聚集体进行光谱分配。当沿着共轭噻吩骨架的阴离子取代基之间的间距改变时,配体在光谱上区分聚集形态类型的能力降低,这证实了配体和蛋白质聚集体之间的特定分子相互作用是检测聚集体多态性所必需的。我们的研究结果为开发新的荧光配体提供了结构和功能基础,这些配体可以区分不同形态的蛋白质聚集体。
three components (i.e., heteroarene, alcohol, and CHCl3). The copper additive was confirmed to simultaneously promote the reaction in three pathways: oxidant cracking, single electron transfer, and alcoholysis. By means of this protocol, various functionalized furancarboxylates and other heteroarenecarboxylates were facilely obtained in moderate to good yields.
[GRAPHICS]Methyl thiophene-2-carboxylate, methyl 3-(thien-2-yl)acrylate, and methyl 5,2'-bithiophene-2-carboxylate were utilized as the synthetic equivalents of pentanoate 5-anion, pentanoate 4,5-dianion, heptanoate 7-anion, and nonanoate-8,9-dianion. By the promotion of samarium diiodide, these thiophene incorporating compounds reacted with aldehydes, ketones, and conjugated esters regioselectively at the thienyl rings, Long-chain esters with remote hydroxyl and carboxyl groups, including an antiarthritis agent, a shellac component, and an inhibitory agent of spore germination, were prepared after reductive desulfurizatian on Raney nickel.
CAMPAIGNE, E.;WHITE, R. L. (JR), J. HETEROCYCL. CHEM., 25,(1988) N 2, 367-373
作者:CAMPAIGNE, E.、WHITE, R. L. (JR)
DOI:——
日期:——
[EN] MOF, MOF LINKERS AND MANUFACTURING METHOD THEREOF<br/>[FR] STRUCTURES ORGANOMÉTALLIQUES, LIEURS DE MOF ET PROCÉDÉ DE FABRICATION DE CEUX-CI
申请人:[en]UNIVERSITEIT ANTWERPEN
公开号:WO2022223773A1
公开(公告)日:2022-10-27
The present invention relates to Metal Organic Frameworks (MOF), linkers for said MOFs and method of manufacturing thereof, wherein the MOF linker comprises a core and spacers having aryl moieties.
Campaigne, E.; White, R.L., Journal of Heterocyclic Chemistry, 1988, vol. 25, p. 367 - 373