MOLECULAR TWEEZERS FOR THE TREATMENT OF ALZHEIMER'S DISEASE
申请人:The Regents of the University of California
公开号:EP2403859B1
公开(公告)日:2017-05-03
NOVEL IMIDE DERIVATIVE, MATERIAL FOR ORGANIC ELECTROLUMINESCENT DEVICE AND ORGANIC ELECTROLUMINESCENT DEVICE USING THE SAME
申请人:MORISHITA Hironobu
公开号:US20070160905A1
公开(公告)日:2007-07-12
An imide derivative represented by the following formula (A):
wherein R
a
and R
b
are each a hydrogen atom, a halogen atom, a cyano group, an alkyl group, a fluoroalkyl group or an aryl group; at least one of R
a
and R
b
is a fluoroalkyl group; and R
c
and R
d
are each a substituted or unsubstituted benzyl group, an aryl group, a heterocycle, a fluoroalkyl group or an imide group.
US8168327B2
申请人:——
公开号:US8168327B2
公开(公告)日:2012-05-01
Sterically Controlled Recognition of Macromolecular Sequence Information by Molecular Tweezers
作者:Howard M. Colquhoun、Zhixue Zhu、Christine J. Cardin、Yu Gan、Michael G. B. Drew
DOI:10.1021/ja0759996
日期:2007.12.1
involves multiple binding of tweezer molecules to adjacent diimide residues within the copolymer chain. The adjacent-binding model for sequencerecognition has been validated by two conceptually different sets of tweezer binding experiments. One approach compares sequence-recognition events for copolyimides having either restricted or unrestricted triple-triplet sequences, and the other makes use of
基于芘的镊子分子和可溶性高摩尔质量共聚酰亚胺之间证明了序列特异性结合。结合涉及互补的 pi-pi 堆积相互作用、聚合物链折叠和氢键,并且对均苯四甲酰亚胺结合位点周围的空间环境极为敏感。通过对带有模型二亚胺的镊子配合物的单晶 X 射线研究,获得了所涉及的分子间相互作用的详细图片。镊子分子的芘“臂”对聚酰亚胺质子的环电流磁屏蔽引起相应 1H NMR 共振的大络合位移,从而能够通过其络合位移识别特定的三重序列。扩展的共聚单体序列(其中单体残基仅因存在或不存在甲基而不同的三联体的三联体)可以通过涉及镊子分子与共聚物链内相邻二酰亚胺残基的多重结合的机制“读取”。用于序列识别的相邻结合模型已通过两组概念上不同的镊子结合实验得到验证。一种方法比较具有限制性或非限制性三重三联体序列的共聚酰亚胺的序列识别事件,另一种方法利用包含强结合和完全非结合二亚胺残基的共聚物。在所有情况下,相邻结合模型预测的三重三联体序列的性质和相对比例与观察到的