Novel Compounds for the Treatment of Diseases Associated with Amyloid or Amyloid-Like Proteins
申请人:Kroth Heiko
公开号:US20110280808A1
公开(公告)日:2011-11-17
The present invention relates to novel compounds that can be employed in the treatment of a group of disorders and abnormalities associated with amyloid protein, such as Alzheimer's disease, and of diseases or conditions associated with amyloid-like proteins. The compounds of the present invention can also be used in the treatment of ocular diseases associated with pathological abnormalities/changes in the tissues of the visual system. The present invention further relates to pharmaceutical compositions comprising these compounds and to the use of these compounds for the preparation of medicaments for treating or preventing diseases or conditions associated with amyloid and/or amyloid-like proteins. A method of treating or preventing diseases or conditions associated with amyloid and/or amyloid-like proteins is also disclosed.
A direct dehydrative coupling protocol for the synthesis of 3-vinylindoles using easily available indoles and simple ketones as substrates was developed with the aid of a sulfonyl-containing Brønsted acid ionic liquid. The salient features of this protocol are high synthetic efficiency, a metal- and solvent-free system, a recyclable catalyst, mild conditions and easy product isolation. With the ionic
借助含磺酰基的布朗斯台德酸离子液体,开发了一种使用容易获得的吲哚和简单的酮为底物合成3-乙烯基吲哚的直接脱水偶联方案。该协议的主要特点是合成效率高,无金属和无溶剂系统,可循环使用的催化剂,条件温和且产品易于分离。使用离子液体催化剂,还以2-羟基甲基吲哚和苯乙酮为起始原料,开发了迄今为止尚未报道的简单的吲哚[3,2- b ]咔唑骨架的构建方法。
US9221812B2
申请人:——
公开号:US9221812B2
公开(公告)日:2015-12-29
Brønsted acid ionic liquid-catalyzed reductive Friedel–Crafts alkylation of indoles and cyclic ketones without using an external reductant
In the absence of an external reductant, C3-cycloalkylated indole could be synthesized through reductive alkylation of indole with cyclic ketone using a sulfonyl-functionalized Brønsted acid ionic liquid as a catalyst. Water generated in the initial stage of the reaction played a key role in rendering the reductive coupling possible. The reaction proceeds most likely in a radical way.