Structure-activity study of furyl aryloxazole fluorescent probes for the detection of singlet oxygen
作者:Renzo P. Zanocco、Roger Bresoli-Obach、Santi Nonell、Else Lemp、Antonio L. Zanocco
DOI:10.1371/journal.pone.0200006
日期:——
detect singletoxygen. They include a highly fluorescent chemical structure, an aryloxazole ring, linked to a furan moiety operating as singletoxygen trap. Their activity depends on both the structure of the aryloxazole fluorophore and the electron-donating and electron-accepting properties of the substituents attached to the C-5 of the furan ring. All probes are selectively oxidized by singlet oxygen
在这项研究中,我们报告了一系列旨在检测单线态氧的新型“点击式”荧光探针的合成和光化学行为。它们包括一个高荧光化学结构,一个芳基恶唑环,与一个作为单线态氧陷阱的呋喃部分相连。它们的活性取决于芳基恶唑荧光团的结构以及连接到呋喃环 C-5 的取代基的给电子和受电子特性。所有探针都被单线态氧选择性氧化,在甲醇中产生单一荧光产物,并通过自敏化产生可忽略量的单线态氧。最有前途的二元体,(E)-2-(2-(5-甲基呋喃-2-基)乙烯基)萘并[1,2-d]恶唑, FN-6 ,表现出出色的反应活性和灵敏度:它用速率常数 (5,8 ± 0.1) x 10 7 M -1 s -1且其荧光在反应后增加 500 倍。使用修正的 Swain 和 Lupton 参数 F 以及用于亲电子攻击的 Fukui 凝聚函数,根据线性自由能关系对二元组反应性进行分析,表明单线态氧与呋喃环的环加成是部分一致的,并且可能涉及具有比协同环加成预期的“更开放”的结构。
COMPOSITES COMPRISING RIGID-ROD POLYMERS AND GRAPHENE NANOPARTICLES AND PROCESS FOR MAKING THE SAME
申请人:DANG Thuy D.
公开号:US20150218730A1
公开(公告)日:2015-08-06
The present invention relates to composites comprising rigid-rod polymers and graphene nanoparticles, processes for the preparation thereof, nanocomposite films and fibers comprising such composites and articles containing such nanocomposite films and fibers.
Novel vitronectin receptor antagonist derivatives, method for preparing same, use thereof as medicines and pharmaceutical compositions containing same
申请人:Ruxer Jean-Marie
公开号:US20090149476A1
公开(公告)日:2009-06-11
A subject of the invention is the compounds of formula (I):
in which R
1
, R
2
, R
3
, R
4
and G have the meanings indicated in the description, their preparation process, their use as medicaments having an antagonist activity on the vitronectin receptor and the pharmaceutical compositions containing them.
Nouveaux dérivés antagonistes du récepteur de la vitronectine, leur procédé de préparation, leur application comme médicaments et les compositions pharmaceutiques les renfermant
申请人:Galapagos SAS
公开号:EP2070914A1
公开(公告)日:2009-06-17
L'invention a pour objet les composés de formule (I):
dans laquelle R1, R2, R3, R4 et G ont les significations indiquées dans la description, leur procédé de préparation, leur application à titre de médicaments ayant une activité antagoniste du récepteur de la vitronectine et les compositions pharmaceutiques les renfermant.
本发明涉及式 (I) 化合物:
式中 R1、R2、R3、R4 和 G 的含义、其制备方法、其作为具有玻璃连蛋白受体拮抗剂活性的药物的用途以及含有它们的药物组合物。
NOVEL COMPOUND FOR INHIBITING NICOTINAMIDE PHOSPHORIBOSYLTRANSFERASE AND COMPOSITION CONTAINING SAME
申请人:Industry-Academic Cooperation Foundation
Yonsei University
公开号:EP3431472A2
公开(公告)日:2019-01-23
The present invention relates to a novel compounds for inhibiting nicotinamide phosphoribosyltransferase (NamPT), a composition comprising the same, and various uses thereof.