1-/2-Substituted-1H/-2H-[1,2,3]triazolo[4,5-G]phthalazine-4,9-dione compound, process for the preparation thereof and pharmaceutical composition comprising the same
申请人:Choo Park Hea Young
公开号:US20060217383A1
公开(公告)日:2006-09-28
The present invention relates to 1-/2-substituted-1H/-2H-[1,2,3]triazolo[4,5-g]phthalazine-4,9-dione compounds and their pharmaceutically acceptable salts, a process for preparing the compounds and a pharmaceutical composition comprising the compounds. The compounds are shown to effectively inhibit cell proliferation and are thus expected to be used for treatment or prevention or treatment of various cancers or as an ancillary(auxiliary) means of the same.
1-/2-substituted-1H/-2H-[1,2,3]triazolo[4,5-g]phthalazine-4,9-dione compound, process for the preparation thereof and pharmaceutical composition comprising the same
申请人:EWHA University-Industry Collaboration Foundation
公开号:US07160884B2
公开(公告)日:2007-01-09
The present invention relates to 1-/2-substituted-1H/-2H-[1,2,3]triazolo[4,5-g]phthalazine-4,9-dione compounds and their pharmaceutically acceptable salts, a process for preparing the compounds and a pharmaceutical composition comprising the compounds. The compounds are shown to effectively inhibit cell proliferation and are thus expected to be used for treatment or prevention or treatment of various cancers or as an ancillary(auxiliary) means of the same.
DIHYDROXYPHTHALAZINE, IHRE HERSTELLUNG UND VERWENDUNG
申请人:Justus-Liebig-Universität Gießen
公开号:EP3691011A1
公开(公告)日:2020-08-05
Die vorliegende Erfindung umfasst Dihydroxyphthalazine, deren Herstellung, sowie Zubereitungen, die Dihydroxyphthalazine enthalten. Weiterhin betrifft die Erfindung die Verwendung von Dihydroxyphthalazinen bzw. diese enthaltende Zubereitungen als Katholyte in organischen Redox-Fluß-Batterien.
Design, synthesis and biological evaluation of ezrin inhibitors targeting metastatic osteosarcoma
作者:Mikell Paige、George Kosturko、Güllay Bulut、Matthew Miessau、Said Rahim、Jeffrey A. Toretsky、Milton L. Brown、Aykut Üren
DOI:10.1016/j.bmc.2013.11.003
日期:2014.1
Respiratory failure due to pulmonary metastasis is the major cause of death for patients with osteosarcoma. However, the molecular basis for metastasis of osteosarcoma is poorly understood. Recently, ezrin, a member of the ERM family of proteins, has been associated with osteosarcoma metastasis to the lungs. The small molecule NSC 668394 was identified to bind to ezrin, inhibit in vitro and in vivo cell migration, invasion, and metastatic colony survival. Reported herein are the design and synthesis of analogues of NSC 668394, and subsequent functional ezrin inhibition studies. The binding affinity was characterized by surface plasmon resonance technique. Cell migration and invasion activity was determined by electrical cell impedance methodology. Optimization of a series of heterocyclic-dione analogues led to the discovery of compounds 21k and 21m as potential novel antimetastatic agents. (C) 2013 Elsevier Ltd. All rights reserved.
Synthesis of 1-/2-substituted-[1,2,3]triazolo[4,5-g]phthalazine-4,9-diones and evaluation of their cytotoxicity and topoisomerase II inhibition
Studies on antitumor heterocyclic quinones containing nitrogens revealed that the number and position of nitrogens on the heterocyclic ring have significance on cytotoxicity of quinones. In our continuous effort to find more cytotoxic quinone compounds, we designed triazolophthalazine analogues in order to introduce more nitrogens on the heterocyclic quinones. 1-/2-Substituted[ 1,2,3]triazolo[4,5-g] phthalazine-4,9-diones were synthesized by 1,3-dipolar addition of phthalazine-5,8-dione and 4-methoxybenzyl azide by modi. cation of previously reported method. The cytotoxicity of the synthesized compounds was evaluated by a SRB (sulforhodamine B) assay against nine types of human cancer cell lines and inhibition against topoisomerase II (Topo II) of them was assessed by a decatenation assay. Most of the synthesized compounds showed considerably higher cytotoxicity than that of doxorubicin. Also, topoisomerase II inhibitory activity of the tested compounds was higher than that of etoposide and IC50 values of the compounds were 19.4-64.5 mu M. (c) 2008 Elsevier Ltd. All rights reserved.