[EN] NEW COMPOUNDS MODULATING GAMMA-SECRETASE AND THEIR USE IN THE TREATMENT OF ALPHA BETA RELATED PATHOLOGIES, SUCH AS ALZHEIMER'S DISEASE [FR] NOUVEAUX COMPOSÉS MODULANT LA GAMMA-SECRÉTASE ET LEUR UTILISATION DANS LE TRAITEMENT DES PATHOLOGIES ASSOCIÉES AUX ALPHA BÊTA, TELLES QUE LA MALADIE D'ALZHEIMER
A tricyclic aluminum alkoxide catalyst for aldehyde trimethylsilylcyanation
作者:Steven M. Raders、John G. Verkade
DOI:10.1016/j.tetlet.2009.06.138
日期:2009.9
Trimethylsilylcyanation of aldehydes is efficiently accomplished with a low concentration of catalyst I under mild conditions in acetonitrile. This protocol tolerates a variety of electron-rich, neutral, and deficient aryl, heterocyclic, and alkyl aldehydes. At the end of the reaction, catalyst I precipitates from solution, allowing it to be recycled three times. (C) 2009 Elsevier Ltd. All rights reserved.
Dimeric alumatranes as catalysts for trimethylsilylcyanation reaction
作者:Yoseph Kim、Kang Mun Lee、So Han Kim、Jung Hee Moon、Youngjo Kim
DOI:10.1039/c7ra09851k
日期:——
The solid-state structures of dimeric alumatranes with three five-membered rings chelated by [(OCMe2CH2)nN(CH2CH2O)3−n]3− (n = 1, L1; n = 2, L2; n = 3, L3), which vary by the number of CMe2 groups adjacent to the OH functionality [1 (L1H3), 2 (L2H3), and 3 (L3H3)], were determined by single-crystal X-ray diffraction. The X-ray structures revealed that the aluminum geometries were slightly distorted
具有[[OCMe 2 CH 2)n N(CH 2 CH 2 O)3- [ n ]]螯合的三个五元环的二聚体alumatranes的固态结构3-(n = 1,L1 ; n = 2,L2 ; n = 3,L3),其变化取决于与OH官能团[ 1(L1H 3),2(L2H 3)和3(L3H 3)相邻的CMe 2基团的数量)],通过单晶X射线衍射测定。X射线结构表明,铝的几何形状略微扭曲了三角双锥体。所获得的铝配合物是具有三环五元环的第一个结构表征的二聚体金铝酰胺。出乎意料的是,通过密度泛函理论计算确定,带有二甲基取代基的空间庞大的侧臂始终位于桥接位点。通过1 H,13 C和27 Al NMR技术分析了它们的溶液状态结构,并通过质谱确定了它们的气相结构。与Al(OCH 2 CH 2)3 N不同,配合物1-3它们都是固态,固溶相和气相的二聚体。此外,发现它们可以促进芳基,杂芳基和烷基醛与三甲基甲硅烷基
[EN] NEW COMPOUNDS MODULATING GAMMA-SECRETASE AND THEIR USE IN THE TREATMENT OF ALPHA BETA RELATED PATHOLOGIES, SUCH AS ALZHEIMER'S DISEASE<br/>[FR] NOUVEAUX COMPOSÉS MODULANT LA GAMMA-SECRÉTASE ET LEUR UTILISATION DANS LE TRAITEMENT DES PATHOLOGIES ASSOCIÉES AUX ALPHA BÊTA, TELLES QUE LA MALADIE D'ALZHEIMER
申请人:ASTRAZENECA AB
公开号:WO2010132015A1
公开(公告)日:2010-11-18
The present invention relates to novel compounds of formulae (I) and (II) and therapeutically acceptable salts thereof, their pharmaceutical compositions processes for making them and their use in therapeutic methods for treatment and/or prevention of various diseases. In particular, the invention relates to compounds which interfere with γ-secretase and/or its substrate and hence modulate the formation of Aβ peptides.