Discovery and Structure–Activity Relationship of Potent and Selective Covalent Inhibitors of Transglutaminase 2 for Huntington’s Disease
摘要:
Tissue transglutaminase 2 (TG2) is a multifunctional protein primarily known for its calcium-dependent enzymatic protein cross-linking activity via isopeptide bond formation between glutamine and lysine residues. TG2 overexpression and activity have been found to be associated with Huntington's disease (HD); specifically, TG2 is up-regulated in the brains of HD patients and in animal models of the disease. Interestingly, genetic deletion of TG2 in two different HD mouse models, R6/1 and R6/2, results in improved phenotypes including a reduction in neuronal death and prolonged survival. Starting with phenylacrylamide screening hit 7d, we describe the SAR of this series leading to potent and selective TG2 inhibitors. The suitability of the compounds as in vitro tools to elucidate the biology of TG2 was demonstrated through mode of inhibition studies, characterization of druglike properties, and inhibition profiles in a cell lysate assay.
Trisubstituted Pyridinylimidazoles as Potent Inhibitors of the Clinically Resistant L858R/T790M/C797S EGFR Mutant: Targeting of Both Hydrophobic Regions and the Phosphate Binding Site
strategies in the treatment of lungcancer. Acquired resistance compromises the clinical efficacy of EGFRinhibitors during long-term treatment. The recently discovered EGFR-C797S mutation causes resistance against third-generation EGFRinhibitors. Here we present a rational approach based on extending the inhibition profile of a p38 MAP kinase inhibitor toward mutantEGFR inhibition. We used a privileged
of non‐small‐cell lungcancer (NSCLC) with epidermal growth factor receptor (EGFR) inhibitors is made challenging by acquired resistance caused by somatic mutations. Third‐generation EGFRinhibitors have been designed to overcome resistance through covalent binding to the Cys 797 residue of the enzyme, and these inhibitors are effective against most clinically relevant EGFRmutants. However, the high
Design, synthesis, antiviral and cytostatic evaluation of novel isoxazolidine nucleotide analogues with a carbamoyl linker
作者:Kamil Kokosza、Jan Balzarini、Dorota G. Piotrowska
DOI:10.1016/j.bmc.2013.01.007
日期:2013.3
phorylnitrone and N-arylacrylamides in good yields. cis- and trans-isoxazolidine phosphonates obtained herein were evaluated for activity against a broad range of DNA and RNA viruses. None of the compounds were endowed with antiviral activity at subtoxic concentrations. Isoxazolidines having phenyl substituted with halogen (Ar = 2-F-C6H4; 3-Br-C6H4; and 4-Br-C6H4) have been found to inhibit proliferation
5-芳基氨基甲酰基-2-甲基异恶唑烷-3-基-3-膦酸酯已经由N-甲基-C-二乙氧基磷酰基硝酮和N-芳基丙烯酰胺以良好收率合成。评估了本文获得的顺式和反式异恶唑烷膦酸盐对广泛的 DNA 和 RNA 病毒的活性。没有一种化合物在亚毒性浓度下具有抗病毒活性。已发现具有被卤素取代的苯基的异恶唑烷(Ar = 2-FC 6 H 4;3-Br-C 6 H 4;和 4-Br-C 6 H 4)可抑制 L1210、CEM 和 HeLa 细胞的增殖带集成电路50在 100–170 μM 范围内。
Rh(<scp>i</scp>)-Catalyzed regioselective arylcarboxylation of acrylamides with arylboronic acids and CO<sub>2</sub>
作者:Lei Cai、Lei Fu、Chunlin Zhou、Yuzhen Gao、Shangda Li、Gang Li
DOI:10.1039/d0gc02667k
日期:——
The first Rh(I)-catalyzed regioselective arylcarboxylation of electron-deficient acrylamides with arylboronic acids under atmospheric pressure of CO2 has been developed. A range of acrylamides and arylboronic acids were compatible with this reaction under redox-neutral conditions, leading to a series of malonate derivatives that are versatile building blocks in organic syntheses.