Trisubstituted Pyrrolinones as Small-Molecule Inhibitors Disrupting the Protein–RNA Interaction of LIN28 and <i>Let-7</i>
作者:Lydia Borgelt、Fu Li、Pascal Hommen、Philipp Lampe、Jimin Hwang、Georg L. Goebel、Sonja Sievers、Peng Wu
DOI:10.1021/acsmedchemlett.0c00546
日期:2021.6.10
protein–RNA interaction (PRI) using smallmolecules is a promising strategy to develop therapeutics. LIN28 is an RNA-binding protein that blocks the maturation of the tumor suppressor let-7 microRNAs. Herein, we performed a fluorescence polarization-based screening and identified trisubstituted pyrrolinones as small-molecule inhibitors disrupting the LIN28–let-7 interaction. The most potent compound C902
使用小分子调节蛋白质-RNA 相互作用 (PRI) 是开发治疗方法的一种有前景的策略。 LIN28 是一种 RNA 结合蛋白,可阻止抑癌基因let-7 microRNA 的成熟。在此,我们进行了基于荧光偏振的筛选,并鉴定出三取代吡咯啉酮作为破坏 LIN28 -let-7相互作用的小分子抑制剂。最有效的化合物 C902 在 EMSA 验证测定中显示出剂量依赖性抑制作用,增强了 LIN28 冷休克结构域的热稳定性,并增加了 JAR 细胞中成熟let-7 的水平。结构-活性关系研究揭示了有助于 PRI 抑制或蛋白质-蛋白质相互作用 (PPI) 稳定的关键结构特征。本研究中鉴定的吡咯啉酮不仅代表了一类新的 LIN28 结合分子,使有限的可用 LIN28 抑制剂多样化,而且代表了显示取代基依赖性 PRI 抑制和 PPI 激活活性的小分子的第一个例子。
Nitrogen containing heteroaromatics as factor Xa inhibitors
申请人:DuPont Pharmaceuticals Company
公开号:US06020357A1
公开(公告)日:2000-02-01
The present application describes nitrogen containing heteroaromatics and derivatives thereof of formula I: ##STR1## or pharmaceutically acceptable salt or prodrug forms thereof, wherein J is N or NH and D may be C(.dbd.NH)NH.sub.2, which are useful as inhibitors of factor Xa.
The P2X3 receptor is an attractive target for the treatment of pain and chronic coughing, and thus P2X3 antagonists have been developed as new therapeutic drugs. We previously reported selective P2X3 receptorantagonists by derivatization of hit compound 1. As a result, we identified hit compound 3, the structure of which was similar to hit compound 1. On the basis of SAR studies of hit compound 1
The present application describes nitrogen containing heteroaromatics and derivatives thereof of formula I:
or pharmaceutically acceptable salt forms thereof, wherein rings D—E represent guanidine mimics, which are useful as inhibitors of factor Xa.
Asymmetric transfer hydrogenation of γ-aryl α,γ-dioxo-butyric acid esters
作者:Yuan-Zhao Mo、Hui-Fang Nie、Yang Lei、Dong-Xu Zhang、Xiao-Ye Li、Sheng-Yong Zhang、Qiao-Feng Wang
DOI:10.1039/c6ra02500e
日期:——
The asymmetrictransferhydrogenation (ATH) of a series of γ-aryl-α,γ-dioxo-butyric acid esters has been accomplished smoothly. Six ferrocene-based chiral ligands have been prepared and applied in the reactions respectively. Simultaneously, enantiopure Ts-DPEN's utilization in the ATH also has been investigated and the products were obtained in 30–85% chemical yields with 37–95.5% ee.