A room-temperature and PTC-free copper-catalyzed N-arylation of aliphatic amines in neatwater has been developed. Using a combination of CuI and 6,7-dihydroquinolin-8(5H)-one oxime as the catalyst and KOH as the base, a wide range of aliphatic amines are arylated with various aryl and heteroaryl halides to give the corresponding products in up to 95% yield.
Room-Temperature Practical Copper-Catalyzed Amination of Aryl Iodides
作者:Christopher Deldaele、Gwilherm Evano
DOI:10.1002/cctc.201501375
日期:2016.4.6
An efficient and highly practicalprocedure is reported for the Ullmann–Goldberg‐type copper‐catalyzed amination of aryl iodides. By using a combination of copper iodide and proline in the presence of an excess of an amine, a wide range of aryl iodides can be readily aminated at room temperature. The reaction proceeds well regardless of the electronic properties of the starting aryl iodide and the
[EN] 4-SUBSTITUTED BETA-CARBOLINES AS IMMUNOMODULATORS<br/>[FR] beta -CARBOLINES SUBSTITUEES EN POSITION 4 UTILISEES COMME IMMUNOMODULATEURS
申请人:BOEHRINGER INGELHEIM PHARMACEUTICALS, INC.
公开号:WO1998006719A1
公开(公告)日:1998-02-19
(EN) This invention relates to 4-substituted $g(b)-carbolines and $g(b)-carboline analogs that inhibit Ca+2 influx and interleukin-2 (IL-2) production. The 4-substituted $g(b)-carbolines and $g(b)-carboline analogs of this invention are represented by formula (I) wherein Q, n, R, R', R'' and R1-R4 are as defined herein. This invention also relates to methods for producing $g(b)-carbolines. Because of their selective immunomodulating properties, the compounds and pharmaceutical compositions of this invention are particularly well suited for preventing and treating immune disorders, including autoimmune disease, inflammatory disease, organ transplant rejection and other disorders associated with IL-2 mediated immune response.(FR) L'invention porte sur des $g(b)-carbolines substituées en position 4 et des analogues de $g(b)-carbolines inhibant l'influx de Ca+2 et la production d'interleukine-2 (IL-2). Les $g(b)-carbolines substituées en position 4 et les analogues de $g(b)-carbolines objets de l'invention sont représentés par la formule (I) dans laquelle Q, n, R, R', R'' et R1-R4 sont tels que définis dans la description. L'invention porte également sur des procédés de production des $g(b)-carbolines. En raison de leurs propriétés immunomodulatrices, les composés et préparations pharmaceutiques de l'invention sont particulièrement bien adaptés à la prévention et au traitement de troubles du système immunitaire, dont les maladies auto-immunes, les maladies inflammatoires, le rejet des organes transplantés, et autres troubles associés à la réponse immunitaire induite par l'IL-2.