A Small-Molecule Inhibitor of Prion Replication and Mutant Prion Protein Toxicity
作者:Tania Massignan、Valeria Sangiovanni、Silvia Biggi、Claudia Stincardini、Saioa R. Elezgarai、Giulia Maietta、Ivan A. Andreev、Nina K. Ratmanova、Dmitry S. Belov、Evgeny R. Lukyanenko、Grigory M. Belov、Maria Letizia Barreca、Andrea Altieri、Alexander V. Kurkin、Emiliano Biasini
DOI:10.1002/cmdc.201700302
日期:2017.8.22
Into the fold: Prion diseases are neurodegenerative disorders characterized by the accumulation in the brain of a self-replicating, misfolded isoform (PrPSc ) of the cellular prionprotein (PrPC ). No therapies are available for these pathologies. We capitalized on previously described cell-based assays to screen a library of small molecules, and identified 55, a compound capable of counteracting both
Gold(I)-Catalyzed Synthesis of Highly Substituted 1,4-Dicarbonyl Derivatives via Sulfonium [3,3]-Sigmatropic Rearrangement
作者:Weiping Zhou、Arnaud Voituriez
DOI:10.1021/acs.orglett.0c04023
日期:2021.1.1
2-substituted 4-oxo-4-arylbutanal derivatives from commercially available or easily accessible alkynes and vinylsulfoxide substrates has been developed. Extension of the methodology to the use of 1-cycloalkenyl sulfoxides allowed the facile synthesis of five-, six-, and seven-membered-ring cycloalkyl-1-one backbone. Subsequently, the tetrahydrocycloalkyl[b]pyrrole derivatives, which are found in many active
已经开发了一种有效且直接的金催化方案,用于从市售或易于获得的炔烃和乙烯基亚砜底物合成2-取代的4-氧代-4-芳基丁醛衍生物。方法的扩展到使用1-环烯基亚砜使得可以容易地合成五,六和七元环的环烷基-1-一主链。随后,以良好的产率分离出了在许多活性药物成分中发现的四氢环烷基[ b ]吡咯衍生物。机理研究突出了在此过程中a中间体的[3,3]-σ重排。
Discovery of the 2-phenyl-4,5,6,7-Tetrahydro-1H-indole as a novel anti-hepatitis C virus targeting scaffold
作者:Ivan A. Andreev、Dinesh Manvar、Maria Letizia Barreca、Dmitry S. Belov、Amartya Basu、Noreena L. Sweeney、Nina K. Ratmanova、Evgeny R. Lukyanenko、Giuseppe Manfroni、Violetta Cecchetti、David N. Frick、Andrea Altieri、Neerja Kaushik-Basu、Alexander V. Kurkin
DOI:10.1016/j.ejmech.2015.04.022
日期:2015.5
Although all-oral direct-acting antiviral (DAA) therapy for hepatitis C virus (HCV) treatment is now a reality, today's HCV drugs are expensive, and more affordable drugs are still urgently needed. In this work, we report the identification of the 2-phenyl-4,5,6,7-Tetrahydro-1H-indole chemical scaffold that inhibits cellular replication of HCV genotype 1b and 2a subgenomic replicons. The anti-HCV genotype lb and 2a profiling and effects on cell viability of a selected representative set of derivatives as well as their chemical synthesis are described herein. The most potent compound 39 displayed EC50 values of 7.9 and 2.6 mu M in genotype lb and 2a, respectively. Biochemical assays showed that derivative 39 had no effect on HCV NS5B polymerase, NS3 helicase, IRES mediated translation and selected host factors. Thus, future work will involve both the chemical optimization and target identification of 2-phenyl-4,5,6,7-Tetrahydro-1H-indoles as new anti-HCV agents. (C) 2015 Elsevier Masson SAS. All rights reserved.