Design, Synthesis, and Structure–Activity Relationship of N-Arylnaphthylamine Derivatives as Amyloid Aggregation Inhibitors
摘要:
Dyes like CR are able to inhibit the aggregation of A beta fibrils. Thus, a screening of a series of dyes including ABBB (1) was performed. Its main component 2 tested in an in vitro assay (i.e., ThT assay) showed good potency at inhibiting fibrils association. Congeners 4-9 have been designed and synthesized as inhibitors of A beta aggregation. A nurnber of these newly synthesized compounds have been found to be active in the ThT assay with IC50 of 1-57.4 mu M. The most potent compound of this series, 4k, showed micromolar activity in this test. Another potent derivative 4q (IC50 = 5.6 mu M) rapidly crossed the blood-brain barrier, achieving whole brain concentrations higher than in plasma. So 4q could be developed to find novel potent antiaggregating beta A agents useful in Alzheimer disease as well as other neurological diseases characterized by deposits of amyloid aggregates.
Regioselective C–H Thioarylation of Electron-Rich Arenes by Iron(III) Triflimide Catalysis
作者:Amy C. Dodds、Andrew Sutherland
DOI:10.1021/acs.joc.1c00448
日期:2021.4.16
iron(III) triflimide allowed the efficient thiolation of a range of arenes, including anisoles, phenols, acetanilides, and N-heterocycles. The method was applicable for the late-stage thiolation of tyrosine and tryptophan derivatives and was used as the keystep for the synthesis of pharmaceutically relevant biaryl sulfur-containing compounds such as the antibiotic dapsone and the antidepressant vortioxetine
Direct C-S bond coupling is an attractive way to construct aryl sulfur ether, a building block for a variety of biological active molecules. Herein, we disclose an effective model for regioselective thiolation of the aromatic C-Hbond by thiolactivation instead of arene activation. Strikingly, this method has been applied into anisole derivatives that are not available in the arene activation approach
Metal- and solvent-free direct C–H thiolation of aromatic compounds with sulfonyl chlorides
作者:Feng Zhao、Qi Tan、Dahan Wang、Guo-Jun Deng
DOI:10.1039/c9gc03384j
日期:——
A simple, efficient and green method for the direct thiolation of aromaticcompounds using commercially available sulfonyl chlorides as the sulfur source was developed under metal- and solvent-free conditions. The C–S bond was constructed via direct C–H functionalization of diverse aromaticcompounds under an oxygen atmosphere. In this process, various diaryl sulfides were synthesized in moderate to
Naphthyl Derivatives as Inhibitors of Beta-Amyloid Aggregation
申请人:Minetti Patrizia
公开号:US20080255232A1
公开(公告)日:2008-10-16
Compounds useful in the treatment of disorders characterized by deposits of amyloid aggregates are herein described together with pharmaceutical compounds containing the same. In particular the compounds of the present invention are those having the Formula (I) as reported below, where the radicals have the meaning indicated in the description.