strategy for aromatic trifluoromethylation by converting amino into trifluoromethyl groups via a Sandmeyer-type reaction is reported. The transformation involves diazotization of the aromatic amines with tert-butyl nitrite and hydrochloric acid to form aryldiazonium chlorides, followed by trifluoromethylation with trifluoromethylsilver at low temperature. Various readily available aromatic amines are
[EN] OXADIAZOLE COMPOUNDS WHICH INHIBIT BETA-SECRETASE ACTIVITY AND METHODS OF USE THEREOF<br/>[FR] COMPOSÉS OXADIAZOLE QUI INHIBENT L'ACTIVITÉ DE LA BÊTA-SECRÉTASE, ET LEURS PROCÉDÉS D'UTILISATION
申请人:COMENTIS INC
公开号:WO2012054510A1
公开(公告)日:2012-04-26
The invention provides novel beta-secretase inhibitors and methods for their including methods of treating Alzheimer's disease.
这项发明提供了新型β-分泌酶抑制剂以及它们的方法,包括治疗阿尔茨海默病的方法。
[EN] 1,3,5-SUBSTITUTED PHENYL DERIVATIVE COMPOUNDS USEFUL AS BETA-SECRETASE INHIBITORS FOR THE TREATMENT OF ALZHEIMER'S DISEASE<br/>[FR] DERIVES DE PHENYLE 1,3,5-SUBSTITUES UTILES COMME INHIBITEURS DE LA BETA-SECRETASE POUR LE TRAITEMENT DE LA MALADIE D'ALZHEIMER
申请人:MERCK & CO INC
公开号:WO2005103020A1
公开(公告)日:2005-11-03
The present invention is directed to 1,3,5-phenyl substituted derivative compounds which are inhibitors of the beta-secretase enzyme and that are useful in the treatment of diseases in which the beta-secretase enzyme is involved, such as Alzheimer's disease. The invention is also directed to pharmaceutical compositions comprising these compounds and the use of these compounds and compositions in the treatment of such diseases in which the beta-secretase enzyme is involved.
Highly Selective Trifluoromethylation of 1,3-Disubstituted Arenes through Iridium-Catalyzed Arene Borylation
作者:Tianfei Liu、Xinxin Shao、Yaming Wu、Qilong Shen
DOI:10.1002/anie.201106673
日期:2012.1.9
The old one two: A sequential iridium‐catalyzedborylation and copper‐catalyzed trifluoromethylation of arenes is described (see scheme; Pin=pinacol). The reaction is conducted under mild reaction conditions and tolerates a variety of functional groups. The advantages of this tandem procedure are demonstrated by the late‐stage trifluoromethylation of a number of biologically active molecules.
Trifluoromethylation of 1-Aryl-3,3-diisopropyltriazenes
作者:Andreas Hafner、Stefan Bräse
DOI:10.1002/adsc.201201040
日期:2013.3.25
new method for the trifluoromethylation of functionalized aromatic diisopropyltriazenes is described. In a facile two‐step, one‐pot synthesis, various functionalized trifluoromethyl‐substituted arenes are accessible in mostly good yields by using methyl iodide as iodination agent and the trifluoromethylation system (trifluoromethyl)trimethylsilane/potassium fluoride/copper iodide. This concept could