Antitumor Polycyclic Acridines. 7. Synthesis and Biological Properties of DNA Affinic Tetra- and Pentacyclic Acridines
摘要:
New synthetic routes to a series of tetra- and pentacyclic acridines related in structure to marine natural products are reported. The novel water-soluble agent dihydroindolizino[7,6,5-kL]acridinium chloride 14 has inhibitory activity in a panel of non-small-cell lung and breast tumor cell lines exceeding that of m-AMSA. The salt inhibited the release of minicircle products of kDNA confirming that disorganization of topoisomerase II partly underlies the activity of the compound. COMPARE analysis of the NCI mean graph profile of compound 14 at the GI(50) level corroborates this conclusion with Pearson correlation coefficients (>0.6) to clinical agents of the topoisomerase II class: however, this correlation was not seen at the LC50 level. The inhibitory action of 14 on Saccharomyces cerevisiae transfected with human topoisomerase II isoforms showed a 3-fold selectivity against the II alpha isoform over the II beta isoform. Unlike nt-AMSA, 14 is not susceptible to P-glycoprotein-mediated drug efflux and retains activity in lung cells with derived resistance to the topoisomerase II inhibitor etoposide.
Synthesis and SAR study of acridine, 2-methylquinoline and 2-phenylquinazoline analogues as anti-prion agents
摘要:
Transmissible spongiform encephalopathies (TSEs) are thought to arise from aggregation of a protease resistant protein denoted PrPSc, which is a misfolded isoform of the normal cellular prion protein PrPC. Using virtual high-throughput screening we have selected structures analogous to acridine, 2-methyquinoline and 2-phenylquinazoline as potential therapeutic candidates for the treatment of TSEs. From the synthesis and screening of constructed libraries we have shown that an electron-rich aromatic ring attached through an amine linker to the position para to the ring nitrogen is beneficial to both binding to PrPC and the suppression of PrPSc accumulation for acridine and 2-methylquinoline analogues. 2-Phenylquinazoline analogues appear to utilise a different mode of action by binding at a different location and/or pose. We report IC(50)s in the nanomolar range. (c) 2006 Elsevier Masson SAS. All rights reserved.
[EN] NOVEL HDMX INHIBITORS AND THEIR USE FOR CANCER TREATMENT<br/>[FR] NOUVEAUX INHIBITEURS HDMX ET LEUR UTILISATION DANS LE TRAITEMENT DU CANCER
申请人:MIRX PHARMACEUTICALS LLC
公开号:WO2015153535A1
公开(公告)日:2015-10-08
The present invention provides for novel acridine-like class of compounds that have demonstrated efficiency in treating cancer. The compounds of the present invention have demonstrated efficacy in binding to and antagonizing the activity of the p53 repressor, HDMX. Once administered to a cell, the compounds of the present invention bind HDMX, thereby allowing p53 to induce apoptosis of the cancerous cell. A combination of this class of compounds along with Nutlin3 provides a novel approach to treat cancers.
HDMX inhibitors and their use for cancer treatment
申请人:MIRX PHARMACEUTICALS, LLC
公开号:US10183912B2
公开(公告)日:2019-01-22
The present invention provides for novel acridine-like class of compounds that have demonstrated efficiency in treating cancer. The compounds of the present invention have demonstrated efficacy in binding to and antagonizing the activity of the p53 repressor, HDMX. Once administered to a cell, the compounds of the present invention bind HDMX, thereby allowing p53 to induce apoptosis of the cancerous cell. A combination of this class of compounds along with Nutlin3 provides a novel approach to treat cancers.
NOVEL HDMX INHIBITORS AND THEIR USE FOR CANCER TREATMENT
申请人:MIRX PHARMACEUTICALS, LLC
公开号:US20170022166A1
公开(公告)日:2017-01-26
The present invention provides for novel acridine-like class of compounds that have demonstrated efficiency in treating cancer. The compounds of the present invention have demonstrated efficacy in binding to and antagonizing the activity of the p53 repressor, HDMX. Once administered to a cell, the compounds of the present invention bind HDMX, thereby allowing p53 to induce apoptosis of the cancerous cell. A combination of this class of compounds along with Nutlin3 provides a novel approach to treat cancers.
Synthesis and SAR study of acridine, 2-methylquinoline and 2-phenylquinazoline analogues as anti-prion agents
Transmissible spongiform encephalopathies (TSEs) are thought to arise from aggregation of a protease resistant protein denoted PrPSc, which is a misfolded isoform of the normal cellular prion protein PrPC. Using virtual high-throughput screening we have selected structures analogous to acridine, 2-methyquinoline and 2-phenylquinazoline as potential therapeutic candidates for the treatment of TSEs. From the synthesis and screening of constructed libraries we have shown that an electron-rich aromatic ring attached through an amine linker to the position para to the ring nitrogen is beneficial to both binding to PrPC and the suppression of PrPSc accumulation for acridine and 2-methylquinoline analogues. 2-Phenylquinazoline analogues appear to utilise a different mode of action by binding at a different location and/or pose. We report IC(50)s in the nanomolar range. (c) 2006 Elsevier Masson SAS. All rights reserved.
Antitumor Polycyclic Acridines. 7. Synthesis and Biological Properties of DNA Affinic Tetra- and Pentacyclic Acridines
作者:Johnson Stanslas、Damien J. Hagan、Michael J. Ellis、Claire Turner、James Carmichael、Wynne Ward、Timothy R. Hammonds、Malcolm F. G. Stevens
DOI:10.1021/jm9909490
日期:2000.4.1
New synthetic routes to a series of tetra- and pentacyclic acridines related in structure to marine natural products are reported. The novel water-soluble agent dihydroindolizino[7,6,5-kL]acridinium chloride 14 has inhibitory activity in a panel of non-small-cell lung and breast tumor cell lines exceeding that of m-AMSA. The salt inhibited the release of minicircle products of kDNA confirming that disorganization of topoisomerase II partly underlies the activity of the compound. COMPARE analysis of the NCI mean graph profile of compound 14 at the GI(50) level corroborates this conclusion with Pearson correlation coefficients (>0.6) to clinical agents of the topoisomerase II class: however, this correlation was not seen at the LC50 level. The inhibitory action of 14 on Saccharomyces cerevisiae transfected with human topoisomerase II isoforms showed a 3-fold selectivity against the II alpha isoform over the II beta isoform. Unlike nt-AMSA, 14 is not susceptible to P-glycoprotein-mediated drug efflux and retains activity in lung cells with derived resistance to the topoisomerase II inhibitor etoposide.