[EN] SUBSTITUTED 3- AND 4- AMINOMETHYLPIPERIDINES FOR USE AS BETA-SECRETASE IN THE TREATMENT OF ALZHEIMER'S DISEASE<br/>[FR] 3- ET 4- AMINOMETHYLPIPERIDINES SUBSTITUEES UTILISEES COMME BETA-SECRETASE DANS LE TRAITEMENT DE LA MALADIE D'ALZHEIMER
申请人:ACTELION PHARMACEUTICALS LTD
公开号:WO2004002483A1
公开(公告)日:2004-01-08
The invention relates to novel compounds, which are substituted chiral or achiral derivatives of 3- or 4- aminomethylpiperidine of the general formula (I). The invention also concerns related aspects including processes for the preparation of the compounds, pharmaceutical compositions containing one or more compounds of general formula (I) and especially their use as inhibitors of beta-secretases for the treatment of Alzheimer’s disease.
Cobalt-catalyzed alkene hydrogenation by reductive turnover
作者:Vincent van der Puyl、Ruairi O. McCourt、Ryan A. Shenvi
DOI:10.1016/j.tetlet.2021.153047
日期:2021.5
reactivity for a given metal center result from ligand field strength, which can promote reaction through either open- or closed-shell carbon intermediates. Herein we report a simple protocol for cobalt-catalyzed alkene reduction. Instead of using an oxidative turnover mechanism that requires stoichiometric hydride, we find a reductive turnover mechanism that requires stoichiometric proton. The reaction
3-PIPERIDINYLISOCHROMAN-5-OLS AS DOPAMINE AGONISTS
申请人:Shutske Gregory
公开号:US20070099955A1
公开(公告)日:2007-05-03
The present invention provides compounds of formula I:
a stereoisomer or a pharmaceutically acceptable salt thereof, wherein the variables R
1
, R
2
, R
3
, R
4
, X and n are defined as defined herein. Additionally, a method for treating dopamine-related neurological disorders selected form the group consisting of neurological, psychological, cardiovascular, cognitive or attention disorders, substance abuse and addictive behavior, or a combination thereof, comprising administering to a patient in need of such treatment a therapeutically effective amount of compounds of formula I.
In this work, a simple and stepwise strategy has been adopted for the successful synthesis of diamine functionalized porous grapheneoxidesheets decorated with ultra-small palladium oxidenanoparticles. The successful synthesis, stepwise functionalization, morphology and elemental composition have been authenticated by using numerous physicochemical characterization techniques such as FT-IR, TGA,
Copper mediated oxidation of amides to imides by Selectfluor
作者:Zhuang Jin、Bo Xu、Gerald B. Hammond
DOI:10.1016/j.tetlet.2011.02.059
日期:2011.4
The combination of Selectfluor and copper(I) bromide has shown a strong oxidation ability, readily oxidizing amides into the corresponding imides in acetonitrile at room temperature in less than 1 h. This transformation under mild conditions gives good to excellent chemical yields. A possible reaction mechanism is proposed. (C) 2011 Elsevier Ltd. All rights reserved.