[EN] VINYL FLUORIDE CYCLOPROPYL FUSED THIAZIN-2-AMINE COMPOUNDS AS BETA-SECRETASE INHIBITORS AND METHODS OF USE<br/>[FR] COMPOSÉS THIAZIN-2-AMINE FUSIONNÉE À UN VINYL FLUORURE CYCLOPROPYLE EN TANT QU'INHIBITEURS DE LA BÊTA-SECRÉTASE ET LEURS PROCÉDÉS D'UTILISATION
申请人:AMGEN INC
公开号:WO2017024180A1
公开(公告)日:2017-02-09
The present invention provides a new class of compounds useful for the modulation of beta-secretase enzyme (BACE) activity. The compounds have a general Formula I: wherein variables A4, A5, A6, A7, and each of Ra, Rb, R1, R2, R3, R8 R9 and R10 of Formula I, independently, are defined herein. The invention also provides pharmaceutical compositions comprising the compounds, and uses of the compounds and compositions for treatment of disorders and/or conditions related to Aβ plaque formation and deposition, resulting from the biological activity of BACE. Such BACE mediated disorders include, for example, Alzheimer's Disease, cognitive deficits, cognitive impairments, schizophrenia and other central nervous system conditions.
Benzaldehyde- and Nickel-Catalyzed Photoredox C(sp<sup>3</sup>)–H Alkylation/Arylation with Amides and Thioethers
作者:Xiaojia Si、Lumin Zhang、A. Stephen K. Hashmi
DOI:10.1021/acs.orglett.9b02226
日期:2019.8.16
Herein a synergistic combination of a nickel catalyst and benzaldehyde for the utilization of amides and thioethers in C(sp3)–H alkylation and arylation reactions employing simple aryl or alkyl halides is reported. This method provides a simple and cheap strategy for the direct functionalization of amides and thioethers. Readily available starting materials, mild reaction conditions, a good functional-group
Tf<sub>2</sub>O-Promoted Intramolecular Schmidt Reaction of the ω-Azido Carboxylic Acids
作者:Xue-Juan Wang、Yan Su、Rui Li、Peiming Gu
DOI:10.1021/acs.joc.8b00475
日期:2018.5.18
A designed Tf2O-promoted intramolecular Schmidt reaction of 2-substituted ω-azido carboxylicacids was demonstrated. Tf2O was used as an activation reagent for the carboxylicacid, and ω-azido anhydride was in situ generated, releasing a molecular TfOH, which acted as an acid promoter for the Schmidt process. A series of 2-substituted pyrrolidines was produced and acetylated for better purification
Rearrangements of Bicyclic Nitrones to Lactams: Comparison of Photochemical and Modified Barton Conditions
作者:Yibin Zeng、Brenton T. Smith、John Hershberger、Jeffrey Aubé
DOI:10.1021/jo035004b
日期:2003.10.1
The rearrangement of nitrones to lactams can be carried out by photochemical activation or by treatment with Tf(2)O followed by KOH-promoted rearrangement (a modification of conditions originally introduced by Barton). Substrates in which the nitrone is part of a fused bicyclic ring system have traditionally proven problematic for this kind of reaction. In this study, a series of mono-, bi-, and tricyclic
Method of manufacturing acetone or methyl ethyl ketone
申请人:TOA NENRYO KOGYO KABUSHIKI KAISHA
公开号:EP0068866A1
公开(公告)日:1983-01-05
The invention relates to a method for the manufacture of ketones which comprises oxidizing an n-olefin in the presence of a catalyst containing palladium, copper, a halogen, and at least one of specific tertiary amines.