Potent acetylcholinesterase inhibitors: design, synthesis, and structure–Activity relationships of bis-interacting ligands in the galanthamine series
摘要:
New galanthamine derivatives, especially bis-interacting ligands 3-5 and 7-9 were prepared in order to interact with the catalytic and the peripheral sites of acetylcholinesterase (AChE). The synthesis, the anticholinesterase activities, and the structure-activity relationships of bis-interacting ligands are reported. Compounds 4d-e were found to be more potent than galanthamine and tacrine in inhibiting AChE. (C) 1998 Elsevier Science Ltd. All rights reserved.
为实现用于碱性燃料电池(AFC)的高性能阴离子交换膜(AEM),通过亲核缩聚,脱甲基化反应合成了一系列具有不同长度的柔性间隔基连接阳离子基团和主链的季铵化聚醚砜(PES)。和威廉姆森的反应。原子力显微镜(AFM)相图像显示了所有侧链型AEM的清晰的亲水/疏水相分离。PES- n- QA膜在阳离子基团和主链(苯环)之间具有亚己氧基间隔基(n = 6),表现出最大电导率为62.7 mS cm -1(IEC = 1.48 meq。g -1)在80°C下。的AEM材料被发现通过延伸所述柔性间隔物(的长度为具有改善的长期稳定性的碱性Ñ ≥4)。具有柔性十二烯氧基间隔基的PES-12-QA膜表现出最高的碱性稳定性,在60°C的1 M KOH水溶液中浸泡720 h后,电导率和IEC仅下降了8.1%和6.9%。此外,使用PES-6-QA作为AEM的单燃料电池性能测试显示,在60°C的电流密度为250 mA
Process for removing bile salts from a patient and alkylated compositions therefor
申请人:GelTex Pharmaceuticals, Inc.
公开号:US20010044519A1
公开(公告)日:2001-11-22
The invention relates to a method for removing bile salts from a patient in need thereof and compositions useful in the method. The method comprises administering to the patient a therapeutically effective amount of a salt of an alkylated and crosslinked polymer. The alkylated and crosslinked polymer salt comprises the reaction product of crosslinked polymers, or salts and copolymers thereof having amine containing repeat units, with at least one aliphatic alkylating agent.
PROCESS FOR REMOVING BILE SALTS FROM A PATIENT AND ALKYLATED COMPOSITIONS THEREOR
申请人:GelTex Pharmaceuticals, Inc.
公开号:US20020095002A1
公开(公告)日:2002-07-18
The invention relates to a method for removing bile salts from a patient in need thereof and compositions useful in the method. The method comprises administering to the patient a therapeutically effective amount of a salt of an alkylated and crosslinked polymer. The alkylated and crosslinked polymer salt comprises the reaction product of crosslinked polymers, or salts and copolymers thereof having amine containing repeat units, with at least one aliphatic alkylating agent.
Alkylated poly(allylamine) polymers and methods of use
申请人:Mandeville Harry W.
公开号:US20070155950A1
公开(公告)日:2007-07-05
The invention relates to a method for removing bile salts from a patient in need thereof and compositions useful in the method. The method comprises administering to the patient a therapeutically effective amount of a salt of an alkylated and crosslinked polymer. The alkylated and crosslinked polymer salt comprises the reaction product of crosslinked polymers, or salts and copolymers thereof having amine containing repeat units, with at least one aliphatic alkylating agent.
Hydrophile Zentren aufweisende Polyvinylamin-Derivate, Verfahren zu ihrer Herstellung sowie die Verwendung der Verbindungen als Arzneimittel, Wirkstoffträger und Nahrungsmittelhilfsstoff
申请人:HOECHST AKTIENGESELLSCHAFT
公开号:EP0580078B1
公开(公告)日:1997-10-15
PROCESS FOR REMOVING BILE SALTS FROM A PATIENT AND ALKYLATED COMPOSITIONS THEREFOR