targeted by small molecules called generically correctors and potentiators, respectively. Aminoarylthiazoles (AATs) represent an interesting class of compounds that includes molecules with dual activity, as correctors and potentiators. With the aim to improve the activity profile of AATs, we have now designed and synthesized a library of novel compounds in order to establish an initial SAR that may provide
Gold-Catalyzed C–H Functionalization with Aryl Germanes
作者:Christoph Fricke、Amit Dahiya、William B. Reid、Franziska Schoenebeck
DOI:10.1021/acscatal.9b02841
日期:2019.10.4
homogenous catalysis, this report discloses the highly efficient and orthogonal reactivity of aryl germanes with arenes under gold catalysis. The method is characterized by mildness, the employment of an air- and moisture-stable gold catalyst, and robustness. Our mechanistic studies show that aryl germanes are highly reactive with Au(I) and Au(III). Our computational data suggest that the origin of this
正交 C sp 2 –C sp 2偶联方案到无所不在的 Pd 催化类的发展将为密集功能化联芳基序的构建提供额外的模块化维度。在这种背景下,迫切需要鉴定用于选择性转化的有效官能团。尽管有机锗化合物通常被认为在均相催化中反应活性较低,但该报告揭示了芳基锗烷与芳烃在金催化下具有高效且正交的反应活性。该方法的特点是温和、使用空气和湿气稳定的金催化剂以及稳健性。我们的机理研究表明,芳基锗烷与 Au (I)和 Au (III)具有高度反应性。我们的计算数据表明,这种反应性的根源主要在于相对较低的键解离能,因此达到关键键激活过渡态的畸变能较低。
Discovery and Characterization of a Cryptic Secondary Binding Site in the Molecular Chaperone HSP70
作者:Suzanne O’Connor、Yann-Vaï Le Bihan、Isaac M. Westwood、Manjuan Liu、Oi Wei Mak、Gabriel Zazeri、Ana P. R. Povinelli、Alan M. Jones、Rob van Montfort、Jóhannes Reynisson、Ian Collins
DOI:10.3390/molecules27030817
日期:——
potential for the inhibition of HSP70 through alternative binding sites using fragment-basedapproaches. A surface plasmon resonance (SPR) fragment screen designed to detect secondary binding sites in HSP70 led to the identification by X-ray crystallography of a cryptic binding site in the nucleotide-binding domain (NBD) of HSP70 adjacent to the ATP-binding site. Fragment binding was confirmed and characterized
热休克蛋白 70 (HSP70) 是关键分子伴侣,在许多癌症中过度表达,通常与转移和不良预后相关。事实证明,由于 HSP70 ATP 结合位点的柔性和亲水性及其对内源核苷酸的高亲和力,开发 ATP 竞争性、药物样的 HSP70 小分子抑制剂非常困难。本研究的目的是探索使用基于片段的方法通过替代结合位点抑制 HSP70 的潜力。旨在检测 HSP70 中二级结合位点的表面等离子共振 (SPR) 片段筛选,通过 X 射线晶体学鉴定了 HSP70 核苷酸结合域 (NBD) 中与 ATP 结合位点相邻的隐秘结合位点。使用 SPR 和配体观察的 NMR 方法确认片段结合并表征为 ATP 竞争性。应用分子动力学模拟来了解配体结合时与蛋白质的相互作用,并检测到与观察到的具有和不具有隐袋的晶体结构之间的相互转换一致的局部二级结构变化。进行了针对隐秘口袋的虚拟高通量筛选(vHTS),并通过 SPR 证实了具有
Singh,H. et al., Indian Journal of Chemistry, 1969, vol. 7, p. 571 - 574
作者:Singh,H. et al.
DOI:——
日期:——
Singh,H. et al., Journal of the Indian Chemical Society, 1966, vol. 43, p. 585 - 588