Electron transfer studies on Cu(II) complexes bearing phenoxy-pincer ligands
摘要:
Oxido-pincer ligands with phenolate-groups [2,6-bis(2-methoxyphenyl) pyridine (LOMe2), 2,6-bis(2-hydroxyphenyl)- pyridine (LOH2), 2,6-bis-(2,4-dimethoxyphenyl)-pyridine (LOMe4)] coordinate to Cu-II forming binuclear complexes which can be easily and reliably converted into mononuclear species. Their physical properties were analysed using EPR, optical spectroscopy and (spectro-) electrochemical methods. The results were compared to those of related Ni-II complexes and discussed in view of Cu-containing metalloenzymes. Due to the ligands flexibility the Cu-II/Cu-I redox couple exhibits high reversibility, while the ligand-centred oxidation leads to highly reactive phenoxy radicals. Reduction of the LOH2 complex leads to sequential deprotonation. The ligand LOMe4 and the derived complexes show blue luminescence, which can be rationalised from its molecular structure (analysed by XRD). (C) 2010 Elsevier B.V. All rights reserved.
Design, Synthesis, and Biological Evaluation of Novel Pyridine-Bridged Analogues of Combretastatin-A4 as Anticancer Agents
作者:Shilong Zheng、Qiu Zhong、Madhusoodanan Mottamal、Qiang Zhang、Changde Zhang、Elise LeMelle、Harris McFerrin、Guangdi Wang
DOI:10.1021/jm500002k
日期:2014.4.24
A series of novel pyridine-bridged analogues of combretastatin-A4 (CA-4) were designed and synthesized. As expected, the 4-atom linker configuration retained little cytotoxicities in the compounds 2e, 3e, 3g, and 4i. Activities of the analogues with 3-atom linker varied widely depending on the phenyl ring substitutions, and the 3-atom linker containing nitrogen represents the more favorable linker
[EN] ANTI-VASCULATURE AND ANTI-TUBULIN COMBRETASTATIN ANALOGS FOR TREATMENT OF CANCER<br/>[FR] ANALOGUES DE COMBRÉTASTATINE ANTI-VAISSEAUX SANGUINS ET ANTI-TUBULINE POUR LE TRAITEMENT DU CANCER
申请人:XAVIER UNIVERSITY OF LOUISIANA
公开号:WO2015153252A1
公开(公告)日:2015-10-08
Combretastatins analog compounds and their pharmaceutically acceptable salts are presented, as well as pharmaceutical compositions comprising the combretastatin analog compounds and uses of the combretastatin analog compounds, either alone or in combination with at least one additional therapeutic agent, in the treatment of cancer, and in particular cancer presenting as metastatic tumors.
Anti-vasculature and anti-tubulin combretastatin analogs for treatment of cancer
申请人:XAVIER UNIVERSITY OF LOUISIANA
公开号:US10017475B2
公开(公告)日:2018-07-10
Combretastatins analog compounds and their pharmaceutically acceptable salts are presented, as well as pharmaceutical compositions comprising the combretastatin analog compounds and uses of the combretastatin analog compounds, either alone or in combination with at least one additional therapeutic agent, in the treatment of cancer, and in particular cancer presenting as metastatic tumors.
ANTI-VASCULATURE AND ANTI-TUBULIN COMBRETASTATIN ANALOGS FOR TREATMENT OF CANCER
申请人:WANG Guangdi
公开号:US20170044103A1
公开(公告)日:2017-02-16
Combretastatins analog compounds and their pharmaceutically acceptable salts are presented, as well as pharmaceutical compositions comprising the combretastatin analog compounds and uses of the combretastatin analog compounds, either alone or in combination with at least one additional therapeutic agent, in the treatment of cancer, and in particular cancer presenting as metastatic tumors.
Electron transfer studies on Cu(II) complexes bearing phenoxy-pincer ligands
作者:Axel Klein、Katharina Butsch、Jörg Neudörfl
DOI:10.1016/j.ica.2010.06.011
日期:2010.10
Oxido-pincer ligands with phenolate-groups [2,6-bis(2-methoxyphenyl) pyridine (LOMe2), 2,6-bis(2-hydroxyphenyl)- pyridine (LOH2), 2,6-bis-(2,4-dimethoxyphenyl)-pyridine (LOMe4)] coordinate to Cu-II forming binuclear complexes which can be easily and reliably converted into mononuclear species. Their physical properties were analysed using EPR, optical spectroscopy and (spectro-) electrochemical methods. The results were compared to those of related Ni-II complexes and discussed in view of Cu-containing metalloenzymes. Due to the ligands flexibility the Cu-II/Cu-I redox couple exhibits high reversibility, while the ligand-centred oxidation leads to highly reactive phenoxy radicals. Reduction of the LOH2 complex leads to sequential deprotonation. The ligand LOMe4 and the derived complexes show blue luminescence, which can be rationalised from its molecular structure (analysed by XRD). (C) 2010 Elsevier B.V. All rights reserved.