Bis-styrylpyridine and bis-styrylbenzene derivatives as inhibitors for Aβ fibril formation
摘要:
New bis-styrylpyridine and bis-styrylbenzene derivatives were designed and synthesized. These 34 compounds were evaluated by A beta fibril formation inhibitory assay using thioflavin T as a dye (named ThT assay). Most of them showed excellent inhibitory activities for A beta fibril formation at IC50 of 0.1-2.7 mu M which is comparable to curcumin (IC50 of 0.8 mu M). Among them, nine compounds were screened for their cytotoxicities on HT-22 cell by MTT assay at 1, 10, and 50 mu M. In particular, 1-7 and II-2 exhibited the best combination of inhibitory activity and compound cytotoxicity. (c) 2006 Elsevier Ltd. All rights reserved.
The synthesis of novel bisphosphonates as inhibitors of phosphoglycerate kinase (3-PGK)
作者:Neil A. Caplan、Christopher I. Pogson、David J. Hayes、G. Michael Blackburn
DOI:10.1039/a906507e
日期:——
A series of conformationally-restrained analogues of 1,3-bisphospho-D-glyceric acid (1,3-BPG) 1 has been synthesised for use as inhibitors of 3-PGK (E.C. 2.7.2.3). These compounds have non-scissile phosphonate linkages and also incorporate α-halogen substituents to make them isopolar and isosteric mimics of the natural substrate. A monocyclic aryl core between the two phosphoryl centres provides both
合成了一系列1,3-双磷酸D-甘油酸(1,3-BPG)1的构象限制类似物以用作抑制剂3-PGK(EC 2.7.2.3)。这些化合物具有非断裂性的膦酸酯键,并且还掺入了α-卤素取代基,使它们成为天然底物的等极性和等规模拟物。单环芳基两个磷酰基中心之间的核提供了连接这些部分和基因座的刚性框架,以供进一步取代。这些化合物针对人类3-PGK进行了测试,发现具有良好的竞争性抑制剂。α-氟的膦酸将对酶的亲和力提高到亚微摩尔范围。IC 50数据与p K a 3和p K a 4值的相关性表明,磷酰基的酸度对蛋白质 捆绑。
Polymers and oligomers, their synthesis, and electronic devices incorporating same
申请人:Epstein J. Arthur
公开号:US20050187375A1
公开(公告)日:2005-08-25
The invention relates to polymers and oligomers, methods of their synthesis, and electronic devices comprising them.
这项发明涉及聚合物和寡聚物,它们的合成方法,以及包含它们的电子设备。
Coordination-Driven Hierarchical Organization of π-Conjugated Systems: From Molecular to Supramolecular π-Stacked Assemblies
alternative geometries (linear, angular). Linkers that incorporate an internal pyridyne moiety can also be employed. X‐ray diffraction studies revealed that the metallocyclophanes based on linear linkersself‐organize into infinite π‐stacked columns in the solid state with intermolecular distances of about 3.6 Å. This approach, based on coordination‐drivenself‐assembly, provides a novel and rational strategy