The use of organic catalysis AcrH2 enables the direct β‐trifluoromethylation of carbonylcompounds by atom transfer radical addition reactions with broad substrate scopes under mild conditions. This operationally simple and robust protocol successfully converts a variety of β‐chloro carbonylcompounds into the corresponding α‐chloro‐β‐fluoroalkylcarbonyl products. A significant advantage of this method
[EN] 3-AMINO CHOMAN AND 2-AMINO TETRALIN DERIVATIVES<br/>[FR] DERIVES 3-AMINO CHOMANE ET 2-AMINO TETRALINE
申请人:WYETH CORP
公开号:WO2005012291A1
公开(公告)日:2005-02-10
3-Amino chroman and 2-amino tetralin derivatives and compositions containing such compounds are disclosed. Methods of using the 3-amino chroman and 2-amino tetralin compounds and compositions containing such compounds in the treatment of serotonin disorders, such as depression and anxiety, are also disclosed.
3-Amino chroman and 2-amino tetralin derivatives and compositions containing such compounds are disclosed. Methods of using the 3-amino chroman and 2-amino tetralin compounds and compositions containing such compounds in the treatment of serotonin disorders, such as depression and anxiety, are also disclosed.
(Chloro-3 propionyl)-2 fluoro-4 phénol, procédé pour sa préparation, et application à la préparation de la fluoro-6 chromanone-4
申请人:ISOCHEM (société anonyme)
公开号:EP0225217A1
公开(公告)日:1987-06-10
L'invention le (chloro-3 propionyl)-2 fluoro-4 phénol de formule générale (I) :
que l'on prépare par acylation de Friedel et Crafts du fluoro-4 phénol ou d'un de ses éthers par le chlorue de chloro-3 propionyle, ou bien par réaction de transposition de Fries sur le chloro-3 propionate de fluoro-4 phényle.
Application à la préparation de la fluoro-6 chromanone-4 de formule générale (II) :
par cyclisation du (chloro-3 propionyl)-2 fluoro-4 phénol à température ambiante ou par simple chauffage.
6-OXO-1,6-DIHYDROPYRIDAZINE DERIVATIVE, PREPARATION METHOD THEREFOR AND MEDICAL USE THEREOF
申请人:Jiangsu Hengrui Medicine Co., Ltd.
公开号:EP3907218A1
公开(公告)日:2021-11-10
A 6-oxo-1,6-dihydropyridazine derivative, a preparation method therefor and medical use thereof, in particular, a 6-oxo-1,6-dihydropyridazine derivative represented by general formula (I), a preparation method therefor, and a pharmaceutical composition containing the derivative, and use thereof as a NaV inhibitor and use thereof in the preparation of a drug for the treatment and/or prevention of pain and pain-related diseases. Each substituent in general formula (I) is the same as defined in the description.