Aromatic analogs of arcaine inhibit MK-801 binding to the NMDA receptor
摘要:
Aromatic analogs of arcaine were shown to have inhibitory effects on the binding of the channel blocking drug [H-3]MK-801 to the NMDA receptor complex. The most potent compound of the series was an N,N'-bis(propyl)guanidinium which inhibited [H-3]MK-801 binding with an IC50 of 0.58 mu M and an IC50 of 12.17 mu M upon addition of 100 mu M spermidine. The increase in IC50 upon addition of spermidine suggests competitive antagonism between the inhibitor and spermidine at the arcaine-sensitive polyamine site of the NMDA receptor complex. (C) 1998 Published by Elsevier Science Ltd. All rights reserved.
Aromatic analogs of arcaine inhibit MK-801 binding to the NMDA receptor
摘要:
Aromatic analogs of arcaine were shown to have inhibitory effects on the binding of the channel blocking drug [H-3]MK-801 to the NMDA receptor complex. The most potent compound of the series was an N,N'-bis(propyl)guanidinium which inhibited [H-3]MK-801 binding with an IC50 of 0.58 mu M and an IC50 of 12.17 mu M upon addition of 100 mu M spermidine. The increase in IC50 upon addition of spermidine suggests competitive antagonism between the inhibitor and spermidine at the arcaine-sensitive polyamine site of the NMDA receptor complex. (C) 1998 Published by Elsevier Science Ltd. All rights reserved.
The present invention provides heteroaryl functionalized cyanine dyes including a reactive functional moiety, or which are conjugated to a carrier molecule.
本发明提供了含有反应性官能基的杂环基团功能化青菁染料,或与载体分子共轭的青菁染料。
US9315864B2
申请人:——
公开号:US9315864B2
公开(公告)日:2016-04-19
Aromatic analogs of arcaine inhibit MK-801 binding to the NMDA receptor
作者:Terre A. Sharma、Andrew J. Carr、Rebecca S. Davis、Ian.J. Reynolds、Andrew D. Hamilton
DOI:10.1016/s0960-894x(98)00631-3
日期:1998.12
Aromatic analogs of arcaine were shown to have inhibitory effects on the binding of the channel blocking drug [H-3]MK-801 to the NMDA receptor complex. The most potent compound of the series was an N,N'-bis(propyl)guanidinium which inhibited [H-3]MK-801 binding with an IC50 of 0.58 mu M and an IC50 of 12.17 mu M upon addition of 100 mu M spermidine. The increase in IC50 upon addition of spermidine suggests competitive antagonism between the inhibitor and spermidine at the arcaine-sensitive polyamine site of the NMDA receptor complex. (C) 1998 Published by Elsevier Science Ltd. All rights reserved.
Self-Association and Nitroaromatic-Induced Deaggregation of Pyrene Substituted Pyridine Amides
作者:Sung Kuk Kim、Jong Min Lim、Tuhin Pradhan、Hyo Sung Jung、Vincent M. Lynch、Jong Seung Kim、Dongho Kim、Jonathan L. Sessler
DOI:10.1021/ja411672f
日期:2014.1.8
The self-assembly features of the bis-pyrene methyl amide functionalized pyridine and benzene "tweezers" 1 and 2 were studied in organic solution and in the solid state. These systems were found to display remarkably different self-association features and optical properties, which was rationalized by control experiments using compounds bearing pyrenemethyl esters, alkyl groups, or a single pyrene substituent (3-6). As dilute solutions in chloroform, tweezers 1 displays both pyrene monomer and excimer emission features reflecting intramolecular contacts between the pyrene subunits. At higher concentrations in chloroform, as well as in the solid state, tweezers 1 self-assembles to form a linear supramolecular polymer. In contrast, tweezers 2 does not interact in an intermolecular fashion and photoexcitation produces emission features characteristic of a pyrene monomer. DFT (density functional theory) and TDDFT (time dependent density functional theory) calculations revealed that the lowest vertical transitions are forbidden and that S-1 of 1 is an emissive state. In contrast to 1 and 2, both pyrene-free control systems 5 and 6 were found to form linearly self-assembled supramolecular arrays in the solid state, albeit of differing structure. Upon exposure to trinitrobenzene (TNB), the self-assembled structures formed from 1 undergo deaggregation to form TNB complexes. This change is reflected in both an easily discernible color change and a quenching of the fluorescence emission intensity. Changes in the optical features were also seen in the case of 2. However, notable differences between these two ostensibly similar systems were seen.