New Stable Cu(I) Catalyst Supported on Weakly Acidic Polyacrylate Resin for Green C-N Coupling: Synthesis of N-(Pyridin-4-yl)benzene Amines and N,N-Bis(pyridine-4-yl)benzene Amines
作者:Nitin Kore、Pavel Pazdera
DOI:10.3390/molecules22010002
日期:——
A method for preparation of a new stable Cu(I) catalyst supported on weakly acidic polyacrylate resin without additional stabilizing ligands is described. A simple and efficient methodology for Ullmann Cu(I) catalyzed C-N cross coupling reactions using this original catalyst is reported. Coupling reactions of 4-chloropyridinium chloride with anilines containing electron donating (EDG) or electron withdrawing
描述了一种在没有额外稳定配体的情况下制备负载在弱酸性聚丙烯酸酯树脂上的新型稳定 Cu (I) 催化剂的方法。报道了使用这种原始催化剂的 Ullmann Cu (I) 催化 CN 交叉偶联反应的简单有效方法。4-氯吡啶鎓与分别含有给电子 (EDG) 或吸电子 (EWG) 基团、萘-2-胺和哌嗪的苯胺的偶联反应得到了成功证明。
QUINOLINE DERIVATIVES FOR MODULATING DNA METHYLATION
申请人:Phiasivongsa Pasit
公开号:US20090285772A1
公开(公告)日:2009-11-19
Quinoline derivatives, particularly 4-anilinoquinoline derivatives, are provided. Such quinoline derivatives can be used for modulation of DNA methylation, such as effective inhibition of methylation of cytosine at the C-5 position, for example via selective inhibition of DNA methyltransferase DNMT1. Methods for synthesizing numerous 4-anilinoquinoline derivatives and for modulating DNA methylation are provided. Also provided are methods for formulating and administering these compounds or compositions to treat conditions such as cancer and hematological disorders.
Quinoline derivatives for modulating DNA methylation
申请人:SuperGen, Inc.
公开号:US07790746B2
公开(公告)日:2010-09-07
Quinoline derivatives, particularly 4-anilinoquinoline derivatives of formula (I), are provided:
Such quinoline derivatives can be used for modulation of DNA methylation, such as effective inhibition of methylation of cytosine at the C-5 position, for example via selective inhibition of DNA methyltransferase DNMT 1. Methods for synthesizing numerous 4-anilinoquinoline derivatives and for modulating DNA methylation are provided. Also provided are methods for formulating and administering these compounds or compositions to treat conditions such as cancer and hematological disorders.
Structure–activity relationships for 4-anilinoquinoline derivatives as inhibitors of the DNA methyltransferase enzyme DNMT1
作者:Swarna A. Gamage、Darby G. Brooke、Sanjeev Redkar、Jharna Datta、Samson T. Jacob、William A. Denny
DOI:10.1016/j.bmc.2013.03.033
日期:2013.6
A series of 4-anilinoquinoline derivatives related to the known inhibitor SGI-1027, containing side chains of varying pK(a), were prepared by acid-catalysed coupling of the pre-formed side chains with 4-chloroquinolines. The compounds were evaluated for their ability to reduce the level of DNMT1 protein in HCT116 human colon carcinoma cells by Western blotting. With a very strongly basic N-methylpyridinium side chain, only NHCO-linked compounds were effective, whereas less strongly basic ((diaminomethylene) hydrazono)ethyl or 3-methylpyrimidine-2,4-diamine side chains allowed both NHCO- and CONH-linked compounds to show activity. In contrast, the pK(a) of the quinoline unit had little apparent influence on activity. (C) 2013 Elsevier Ltd. All rights reserved.