The present invention relates to HSP90 inhibitors and their use in the treatment of cell proliferative diseases such as cancer. The said derivatives may further act as HDAC inhibitors.
Imidazopyridine- and Purine-Thioacetamide Derivatives: Potent Inhibitors of Nucleotide Pyrophosphatase/Phosphodiesterase 1 (NPP1)
作者:Lei Chang、Sang-Yong Lee、Piotr Leonczak、Jef Rozenski、Steven De Jonghe、Theodor Hanck、Christa E. Müller、Piet Herdewijn
DOI:10.1021/jm501434y
日期:2014.12.11
Nucleotide pyrophosphatase/phosphodiesterase 1 (NPP1) belongs to the family of ecto-nucleotidases, which control extracellular nucleotide, nucleoside, and (di)phosphate levels. To study the (patho)physiological roles of NPP1 potent and selective inhibitors with drug-like properties are required. Therefore, a compound library was screened for NPP1 inhibitors using a colorimetric assay with p-nitrophenyl
核苷酸焦磷酸酶/磷酸二酯酶1(NPP1)属于胞外核苷酸酶家族,可控制细胞外核苷酸,核苷和(di)磷酸盐的水平。为了研究具有药物样特性的NPP1强效和选择性抑制剂的(病理)生理作用。因此,使用比色测定法以对硝基苯基5'-胸苷单磷酸酯(p -Nph-5'-TMP)作为人工底物,筛选化合物库中的NPP1抑制剂。这导致发现2-(3 H-咪唑并[4,5 - b ]吡啶-2-基硫基)-N-(3,4-二甲氧基苯基)乙酰胺(5a)为具有K i的命中化合物。值为217 nM。随后的结构-活性关系研究导致了嘌呤和咪唑并[4,5- b ]吡啶类似物的开发,用p -Nph-5'-进行测定具有高抑制力(K i值分别为5.00 nM和29.6 nM)。以TMP为底物。出乎意料的是,与ATP作为底物相比,测试时这些化合物的效力明显较低,K i值在低微摩尔范围内。对原型抑制剂的抑制机理进行了研究,发现该抑制剂与两种底物都具有竞争性。
Vasculostatic agents and methods of use thereof
申请人:Wrasidlo Wolfgang
公开号:US20050282814A1
公开(公告)日:2005-12-22
Compositions and methods and are provided for treating disorders associated with compromised vasculostasis. Invention methods and compositions are useful for treating a variety of disorders including for example, stroke, myocardial infarction, cancer, ischemia/reperfusion injury, autoimmune diseases such as rheumatoid arthritis, eye diseases such as retinopathies or macular degeneration or other vitreoretinal diseases, inflammatory diseases, vascular leakage syndrome, edema, transplant rejection, adult/acute respiratory distress syndrome (ARDS), and the like.
[EN] CONDENSED PYRIDINES AND PYRIMIDINES WITH TIE2 (TEK) ACTIVITY<br/>[FR] PYRIDINES CONDENSEES ET PYRIMIDINES A ACTIVITE TIE2 (TEK)
申请人:ASTRAZENECA AB
公开号:WO2004013141A1
公开(公告)日:2004-02-12
A compound of the Formula (I), wherein A together with the carbon atoms to which it is attached forms a fused 5-membered heteroaryl ring, wherein said heteroaryl ring contains 1 or 2 heteroatoms selected from O, N and S, and wherein the 5-membered ring containing G is linked to the ring formed by A in the meta position to the bridgehead carbon marked # in Formula (I); G is selected from O, S and NR5; Z is selected from N and CR6; Q1 is selected from optionally substituted aryl and heteroaryl, and the substituents R1 to R6 are as defined in the text for use in the production of an anti-angiogenic effect in a warm blooded animal such as man.
Excited States of Nucleic Acids Probed by Proton Relaxation Dispersion NMR Spectroscopy
作者:Michael Andreas Juen、Christoph Hermann Wunderlich、Felix Nußbaumer、Martin Tollinger、Georg Kontaxis、Robert Konrat、D. Flemming Hansen、Christoph Kreutz
DOI:10.1002/anie.201605870
日期:2016.9.19
was previously shown to undergo a two site exchange process in the micro- to millisecond time regime. Using proton relaxation dispersion experiments the exchange parameters determined earlier could be recapitulated, thus validating the proposed approach. We further investigated the dynamics of the cTAR DNA, a DNA transcript that is involved in the viral replication cycle of HIV-1. Again, an exchange
在这项工作中,引入了一种改进的核酸稳定同位素标记方案。新颖的构建模块消除/最小化同核 (13) C 和 (1) H 标量耦合,从而允许质子弛豫分散 (RD) 实验准确报告核酸的化学交换。使用位点特异性 (2) H 和 (13) C 标记,将自旋拓扑引入 DNA 和 RNA 中,使 (1) H 弛豫分散实验能够以简单的方式应用。新型 RNA/DNA 构建模块已成功整合到两种核酸中。先前显示 A 位点 RNA 在微秒至毫秒的时间内经历了两个位点交换过程。使用质子弛豫色散实验,可以概括之前确定的交换参数,从而验证所提出的方法。我们进一步研究了 cTAR DNA 的动力学,cTAR DNA 是一种参与 HIV-1 病毒复制周期的 DNA 转录物。同样,交换过程可以被表征和量化。这显示了新标记方案对于(1)核酸HRD实验的普遍适用性。